The much anticipated Dell Aero was launched today in the U.S. on AT&T for $100 on contract.

The Aero is a 3.5-inch 640 x 360 Android phone with 2GB of onboard storage, microSD expansion, triband 3.6Mbps HSDPA and quadband EDGE, a 5 megapixel cam, and a claimed weight of 3.67-ounces. It is running Android 1.5 with custom Dell software superset, however no word on when or if an Android update will be coming.