Citing a leaked image of the iOS 5.1 beta 3, 9to5Mac hinted that Apple could be adding Siri dictation functionality to the upcoming iPad. The beta shows a menu section for "Dictation and Privacy," a feature that is not available on current models of the tablet. It's unclear if this means that the iPad 3 will offer only voice recognition capabilities for dictation or whether Apple will be porting the entire Siri experience to its new slate.

Sources: 9to5Mac