Reliable source has told 9to5Mac some interesting information about the next version of iPhone (iPhone 4S or iPhone 5). Following are the key information leaked related to next version of iPhone.

* The next generation iPhone has reached the final testing stage (aka “AP” stage [Thanks, Chronic!]) and is now being carried around by high level Apple and carrier executives.
* Although this has been assumed since the no-iPhone-at-WWDC-rumors broke, the current plan is for a September launch for the next-generation iPhone.
* Apple and Verizon have yet to strike a deal regarding FaceTime over 3G for the Verizon network. Keep in mind that 3G and 4G aren’t the same thing. Don’t read into that too much. Or maybe do.
*Apple and Verizon are still working out kinks regarding support for iOS 5′s over-the-air updates, which we broke the news about, so carrier support may or may not be delayed past fall 2011.
Then, there are two unsolved code names, N93 and N94, can be found in the SDK 5 iOS. These two code names may be refer to the next version of iPhones. However, it still have a 5 megapixel camera in the back. These information still required to be verified officially.
[9to5mac ]