Apple Insider has unearthed another very cool, who-knows-if-they'll-ever-deploy-it, Apple patent pertaining to the iPhone. This one, credited to engineer Jeffrey Terlizzi pertains to media file sharing while already on a phone call:
"For example, the user may initiate a telephone call with his friend in order to ask the friend if she is familiar with a particular song," Apple said. "Once the phone call has been established between the user and his friend, the user may select the song of interest from his communications device, and he may send the song to his friend over the same communication path used by the communications device to establish the communications operation, so that the two may continue their phone conversation while the song plays simultaneously."
In addition to music, video, photos, voicemail, and podcasts are also mentioned, as are requests in the form of video conferencing (oh, hi, Mobile iChat!), and control over media playback during a call.
Forget 3.0, let the rumors for 3.1 and 4.0 begin! (Joking! A little...)