Yesterday Apple posted two guided tours of the iPhone 3G and iPhone 2.0 firmware, the 38-minute guided tour is aimed at beginners to the iPhone, running through almost all the features of the iPhone. An additional 12-minute version covers just new features to the iPhone 3G and iPhone 2.0 software.

One interesting tidbit discovered in the videos is that the iPhone 3G features two screws on the bottom of the unit that sit either side of the dock connector.

Apple also showed the front screen of the App Store which features a previously unmentioned application. The application is an AOL instant messaging application which will be distributed for free.

The App Store was also shown to operate different to the iTunes WiFi Music Store which downloads to a queue, the App Store immediately displays the application on the home screen and shows a progress bar showing the download completion status.