QuickTime 7.2 adds two new export features into the application — Export for iPhone and Export for iPhone (Cellular). The former exports a .m4v video, while the latter exports in the smaller .3gp format.

In addition to the security issues QuickTime 7.2 adds support for full screen viewing in QuickTime Player and updated the H.264 codec. No more paying for the pro version just to get full screen video!

iTunes 7.3.1 fixes an issue were some users of iTunes 7.3 having access to their music libraries. Just run software update update.