"It should be obvious by now that Apple is planning on integrating a front-facing camera in its next-generation iPhone. The natural use for such a feature is video conferencing. Apple has had numerous references to the unannounced feature in its past iPhone firmware releases, and iPhone 4 SDK Beta 2 is no different.
Apple, however, is becoming less shy about the feature with a new set of status/error strings that have been found detailing various video conferencing states. Interesting to see is that it appears iPhones will have to be registered for video conferencing."