Mountains of Apple iPhone rumors are piling up, and the company, as usual, is keeping its mouth shut.

Perhaps the heated speculation is due to the fact that Apple has not released its next generation of iPhone at the 2011 Apple Worldwide Developers Conference (WWDC), breaking away from its three-year trend of having the new smartphone announced every June.

The rumors have it that Apple is planning its next launch of iPhone this September, and the questions of what, how, and how many are becoming a sensational topic on the Web.

Followings are some of the rumors, including the double-launch of iPhone 5 and iPhone 4S, the “iPhone Mini”, and free iPhone 3GS.

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