Android 2.1 debuted on the new handset and is expected to -- including the Motorola Droid, Motorola Cliq, and HTC Droid Eris -- very soon. While Google calls the update a "," Android 2.1 includes several interface changes that are sure to catch your eye.

Here's a look at what you can expect.

Live Wallpapers

Those cool "" seen on the Nexus One are actually a standard feature of Android 2.1. The interactive backgrounds move in different ways: Some shift and swirl as you navigate around your home screens; others generate visualizations based upon music or finger-taps.

Additional Home Screens