Nokia official video recording software for 7650

Nokia have finally released their own official video recording software for the 7650. Works great on the phone but the video file format is .3gp. What the hell is that? It's supposed to be based upon MPEG4 but when transferred to a Mac Quicktime won't play these files. This press release suggests Quicktime should be able to support this video format by now but it doesn't. Anybody got any ideas?