The font, dubbed Droid, is the product of a two-year collaboration between the Mountain View, Calif.-based Internet giant and Ascender, a digital typeface company based in Elk Grove Village, Ill. Ascender, which has created fonts for Microsoft, Motorola and others, nabbed the Android assignment because its workers knew people on Android’s design and development teams, says Bill Davis, Ascender’s vice president of business development.
You can download the font here.
I think they did a nice job on the font overall. There are a couple different versions including serif and monospace as well. You can see them all here.