Announced yesterday in WWDC 2011 , iOS 5 ipsw beta version is available for download to developers .
New features on iOS 5:
iOS 5 brings new features like Notifications , Reminders , enhanced browsing on Safari , Twitter integration , new Email Client , iMessage and over the Air Sync . Read our complete article about iOS 5 Firmware Features coming up next .
The update is compatible to run on iPhone 4 GSM | CDMA , iPhone 3GS , iPod Touch 4 3G , iPad 1 2 GSM | CDMA .
If you have a developers account , please head on to iOS Dev Centre at Apple.com . Final version of iOS 5 will be available for download this fall .
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