I was just reading one of my mates blog, Ignite, and remebered that the guys at glyFX released a free icon set for the android mobile platform. You can check out the The Android Developer Common Icon Set which contains a total of 24 free quality icons.
The guys at glyFX really do create some stunning icons, and its good to see them release free icons for developers who wish to create applications for the android platform. So please check out the The Android Developer Common Icon Set and if you can help support the guys for their hard work.
You can also check out the full set of free icons that glyFX have released here.