Know what is the advantages IOS 5, Read this

Apple will soon launch a new operating system in iPhone 5 product. iPhone 5 issued will soon be released in September 2011. On the iPhone 5 will use the iOS 5 as operating system.

You may ask what is the advantages iOS 5 compared to previous versions and with other brands. iOS 5 couse have some the advantages, here the advantages of iOS 5:

iOS 5 Will Make Photos Faster and More Fun

The new developer beta of  iOS 5 released last weekend contained a number of new image filters that should let developers manipulate photos much more quickly and easily. That means if you're an iPhone owner, you can expect to see a wealth of new, cheap, photo editing tools for iPhone and iPad. The new effects are part of the iOS 5's Core Image framework, which is designed to make image processing easier on the platform.

The new programming tools will certainly be of use to developers. Even without these new effects and frameworks provided by iOS 5, the iPhone already is the most popular camera on Flickr. This popularity is, at least in part, due to the great photo editing apps that are already available for the iPhone. For instance, popular photo filter app Instragram hit 150 million photos recently in under a year.

However, thus far most of these apps had to create ad hoc solutions with the Core Graphics framework to manipulate photos since iOS didn't have the tools to handle image processing on its own. While that has produced some spectacular effects, creating custom photo filters is also a relatively difficult and complicated task for developers that has discouraged new apps.

The Instagram logoWhile Core Image may make it easier to create competitors for apps like Instagram or Hipstamatic, Developers will also be able to use the new tools in Core Image to stay in the lead.

A more likely possibility is that other app developers will start to integrate photo manipulation into existing social apps like Flickr or Fourquare so you won't need to switch apps or fiddle with your phone the next time you want to upload a photo to Facebook or another social service.

iOS 5 is expected to be released sometime this fall and, thanks to the developer beta that's currently in progress, we can expect a deluge of photo filter apps to follow soon after.

iOS 5 will be a platform much more "social" if it is to earlier versions. Among other features, we can now tweet photos without leaving the camera application, showing where we are and any comments regarding the photo. The same can be done from YouTube or Safari.

Safari, Apple's browser, was also much improved for this release. Now you can save news to read later with included synchronization with other devices, an ideal choice to save a story in the iPhone 4 fastened while riding the subway and then read it in the quiet home iPad 2 Moreover it will enable tabbed browsing "traditional" as with Firefox , Chrome and Internet Explorer.

Update :

iOS 5 know Issues

Apple has just seeded the new beta version of  iOS 5 to developers. This comes after Apple suspended developers accounts which their owners was selling access to iOS 5 Beta.

NOTES AND KNOW ISSUES

The following issues relate to using the 5.0 SDK to develop code.

Accounts

When creating an iCloud account, you can use any Apple ID as long as it is a full email address and not a MobileMe account. If you have a MobileMe account, you can move that account to iCloud. You can find more information on iCloud at: http://developer.apple.com/icloudWhen setting up an iCloud or MobileMe account using the setup assistant and leaving Find My iPhone on, it might actually turn Find my iPhone off after the setup. Please verify in Settings/Mail, Contacts, Calendar/YourAccount that Find my iPhone is toggled On after leaving the setup assistant. NEW: Enabling iCloud services in Setup Assistant may not always be saved correctly. After completing Setup Assistant you should visit Settings > iCloud to verify the state of the iCloud account. If you have multiple iCloud or MobileMe accounts configured on the device you should also visit each of those accounts in Settings > Mail, Contacts, Calendar to verify each account.

 It is recommended that you disable Bookmarks on multiple accounts. If they are enabled, the results might be undefined. 

AirPlay

Starting in iOS 5, video content in applications and websites are AirPlay-enabled by default.iOS 5 supports AirPlay of video via AV Foundation.
 Apple TVApple TV Software beta enables users to mirror the contents of an iPad 2 to an Apple TV (2nd generation) using AirPlay. This beta software also enables Photo Stream on Apple TV so users can access photos stored in iCloud. Apple TV Software beta is being provided to test the latest AirPlay functionality with your iOS 5 apps and web sites. If you wish to install Apple TV Software beta on your device, you must first register your device UDID in the iOS Developer Program Portal. 

Calendar

Birthday calendars are not currently available via the icloud.com website or in Windows. They will be available in a future release. NEW: The default calendar is still the On My iPhone calendar despite setting up an iCloud account during Setup Assistant. As a workaround, reset the default Calendar after finishing Setup Assistant in Settings > Mail, Contacts, Calendar > Default Calendar. NEW: Pushing iCloud Calendar data is not working in iOS. To sync your iCloud Calendar, launch the Calendar app or refresh the calendars manually using the Calendars button in the top left corner. 

Core Image

Several filters have been added since beta 1.Match data for turn based matches is currently limited to 4 KB of data. NEW: When logging in to Game Center, the password may clear and login may not complete. Trying a second time will succeed. NEW: In this beta, GameKit Invites may fail. As a workaround, try restarting the device.

 iBooksi

Books 1.2.2 may fail to display some text or images in books. Please update to iBooks 1.3 in the App Store. 

iCloud Backup

As this is beta software, it is recommended that you do not use the iCloud services to store any critical data or information. If you enable iCloud Backup, automatic backup with iTunes when syncing will be disabled. We also suggest that you manually back up your device with iTunes. Backups made with earlier versions of iOS 5 beta will soon become incompatible, and will no longer be available. It is strongly advised you upgrade to this version of the iOS 5 beta in order to continue backing up your devices. If you encounter errors restoring from a backup, or enabling a backup more than one hour after signing into iCloud, try deleting your iCloud account from Settings and adding it back. If errors persist, please try erasing your device and initiating the restore again. 

iCloud Storage

During the iOS 5 beta period, any documents stored on the servers might be purged periodically before GM. Therefore, it is highly recommended that you do not store any critical documents or information on the servers. NEW: Provisioning Profiles no longer need to be enabled for iCloud in the iOS Provisioning Portal. All newly generated provisioning profiles are now automatically enabled for iCloud. If you are using an Xcode managed Team Provisioning Profile, click refresh in the Xcode Organizer to obtain a new iCloud-enabled profile. To enable all other provisioning profiles for iCloud, simply regenerate your profiles in the iOS Provisioning Portal. If your application is using the NSMetadataQuery class, you must set a predicate, even though the predicate itself is ignored. In this beta, the setSortDescriptors: method of NSMetadataQuery is not supported. FIXED: To use iCloud prior to beta 5, you had to manually specify various container identifiers (your application’s Display set) within an Entitlements file for both of your Mac OS X and iOS projects.Starting in beta 5, to enable iCloud storage within your apps, simply click the “Enable Entitlements” checkbox in the Summary pane of your project. Xcode will create a custom entitlements file for your project that automatically includes your Team ID. You can add additional iCloud Container values as required by your application. (Note that you must regenerate your existing provisioning profiles, either with Xcode or in the iOS Provisioning Portal, to use iCloud storage.) If you specify a custom identifier string for your iCloud Key-Value Store or iCloud Container entitlement values, you no longer need to prepend your Team ID to the beginning of the string. Xcode will prepend your Team ID to these entries automaticallyThe container identifier string you pass to the URLForUbiquityContainerIdentifier: method of NSFileManager MUST include the team ID at the beginning of the string. As a convenience, if you pass nil, Foundation uses the first document container ID specified in your app’s entitlements.There are issues using the Cloud Storage document API in conjunction with protected data which can lead to data corruption. FIXED: In this beta, document-based applications cannot always detect when files change, move, or are deleted out from underneath them. In this beta, file presenters (objects that adopt the NSFilePresenter protocol) do not receive some of the messages that they’re supposed to receive, especially: presentedItemDidChangepresentedSubitemDidAppearAtURL:presentedSubitemDidChangeAtURL: You can workaround this by implementing the relinquishPresentedItemToWriter: method and checking to see if the writer actually wrote when your file presenter reacquires. You can also use FSEvents to observe file system changes In this beta, messages about changes to files in a directory are not getting delivered to objects that adopt the NSFilePresenter protocol. While reporting a bug related to the iCloud storage interfaces, please include the logs collected during your debugging session. To generate these logs, you must install a special debug profile on your device.The debug profile can be obtained from http://connect.apple.com. This profile enables the generation of debug logs that are needed to diagnose any problems using iCloud storage. The instructions to collect the logs are: Install the profile. (The easiest way to do this is to mail it to yourself and open the attachment on their device.) 

Reproduce the bug.

Sync with iTunes to pull the logs off your device.Attach the logs to your bug report. You can find the logs in ~/Library/Logs/CrashReporter/MobileDevice/DeviceName/DiagnosticLogs.These logs can grow large very quickly, so you should remove the profile after you have reproduced the problem and pulled the logs for the bug report. NEW: File names are case-insensitive in OS X but case-sensitive in iOS. This can lead to problems when syncing files between the two. You should take steps on iOS to avoid creating files whose names differ only by case. 

iMessagei

Message beta 1 will be unable to communicate with iMessage users on beta 2 or later.iPod NEW: When using the volume buttons on the device, or on headphones, the volume slider in the UI of applications may not update even though the volume level has changed. 

iTunes

The version of iTunes that comes with beta 5 cannot sync devices that have the beta 4 software installed. To avoid this problem, do the following: Sync any devices that have beta 4 installed to the version of iTunes that came with beta 4.Upgrade iTunes to the version that comes with beta 5. Connect the device and install the beta 5 software. (Understand that you might see a failure to sync error when you first connect the device.) After installing the beta 5 software, restore from your the backup you made in step 1.Videos purchased from the iTunes Store do not play on a 2nd generation AppleTV over AirPlay with iTunes 10.5. 

Location

FIXED: The startMonitoringSignificantLocationChanges method of CLLocationManager does not cause applications to be resumed or launched in the background for significant location change updates. However, if a backup from a previous software version (where an application was monitoring significant location changes) is restored to the device, significant location change monitoring will continue to cause that application to be resumed or launched in the background. 

Mail

FIXED: Forwarding a message with attachments included does not attach the file and the message compose screen does not change from “Loading….” NEW: When changing the host name of an email account in settings, blank messages may be seen in the unified inbox. As a workaround, delete and re-add the account instead of changing its host name. Music LibraryFIXED: Some songs are missing their album artwork after changing the device library via syncing. 

OpenGL ES

FIXED: In iOS 5.0 beta 4, several OpenGL ES extensions have been moved from the APPLE namespace to the EXT namespace, causing some API to be renamed. The altered extensions are EXT_color_buffer_half_float,EXT_occlusion_query_boolean, EXT_separate_shader_objects, EXT_shadow_samplers, EXT_texture_rg, EXT_debug_label, and EXT_debug_marker. 

OTA Software Update

If you are doing an OTA software update, you will need to re-sync your photos with iTunes.” 

Personal HotSpot

FIXED: In this beta, iPhone 4 device cannot join personal hotspot even if it is on due to a non functional Wi-Fi tethering on these devices. PhotosFIXED: If you apply red-eye adjustments in iOS, and import your image into the iPhoto seed build, the red-eye adjustments will not appear on that image in iPhoto. As a result, subsequent syncing of your image back to the iOS device from iPhoto will not show the red-eye adjustments. NEW: When restoring photo libraries from an iTunes backup, some photos may not appear in the Photos application after restore. Please back up your photos before updating to iOS Beta 5. 

Simulator

Location services are not functional in iOS 4.3 simulator running on Mac OS 10.7 with Xcode 4.2. 

Springboard

Push and local notifications for apps appear in the new Notification Center in iOS 5. Notification Center displays notifications that are considered “unread.” In order to accommodate push and local notifications that have no “unread” status, developers can use their application badge count to trigger a clearing of notifications from Notification Center. When an application clears its badge count (by setting it to zero), iOS 5 will clear its notifications from Notification Center. FIXED: iOS 5.0 terminates VoIP applications that are resumed in the background for incoming network traffic with extreme frequency. Developers are encouraged to make sure all incoming data is read from VoIP sockets to avoid this condition. NEW: The UIPrerenderedIcon key (in the Info.plist file) is not honored in this build. 

StoreKit

NEW: In-App purchase will not work for developers testing their apps with the iTunes Sandbox. Twitter FIXED: When tweeting your location from Safari and exiting before the location can be established, the location arrow will stay in the status bar. The arrow can be removed by killing Safari from the task switcher. 

UI Automation

FIXED: Instruments overwrites the loaded automation script, even if another program is editing it. FIXED: The play and record buttons in the Automation instrument script editor may not work properly after targeting an application that was launched by a trace session and has ended. They may also not work if you target an application that was suspended. If you run into this problem and it persists, you may need to close and reopen the trace document to get back into a functional state. FIXED: When capturing actions into a script using the Automation instrument, interfaces with web views or table cells that contain a high number of off screen elements may take an extremely long time before returning with an expression. The lock () and unlock () functions of UIATarget have been replaced with the lockForDuration () function. Starting in iOS 5 beta 2, you can now trigger the execution of an UI Automation script on an iOS device from the host terminal by using the instruments tool. The command is:

instruments -w -t

When using the cli instruments for UI Automation you can now target the default Automation Template and pass the script and results path into the tool as environment variable options. For example:instruments -w -t /Developer/Platforms/iPhoneOS.platform/Developer/Library/Instruments/PlugIns/AutomationInstrument.bundle/Contents/Resources/Automation.tracetemplate -e UIASCRIPT