Apple announced the iOS 4.1 for users at the Apple music Event on September 1. The new iOS 4.1 update should be available as a free update to everyone starting tomorrow, September 8, 2010..
iOS 4.1 includes several new features and enhancements including the fix for the proximity sensor and GameCenter a social framework for iOS gaming which allows for multiplayer gaming. The new update will also include an High Dynamic Range photo for a better photo experience.
iOS 4.1 will be available to all iPhone and iPod Touch users starting September 8, 2010. If you have a jailbroken iPhone or jailbroken iPod Touch, you are advised to stay away from the update until the Dev Team comes out with a patch for iOS 4.1.