T-Mobile developed and presented together with HTC and Google the first smarphone based on Android. It is named T-Mobile G1 and has a touchscreen like the iPhone and a whole keyboard. At the desktop it is not hard to see that google invented the software for this smartphone, you see it in every application on the screen. In the following clip a T-Mobile expert will guide you to the main funktions of the T-Mobile G1.

If you are interessted in how to launch navigation on the T-Mobile G1 watch the video here.