I know that in the sdk folders I can find some (not very well grouped, imho) icon. But, there is a site online specialized that let you download free icons useful for mobile app? Ie world flags, up, down... save, revert..., next..., play, stop..., etc.

It would be more appriciated also if you can find these sets in many different colors, and in 2 or 3 sizes (32x32, 64x64, etc.).

Have a nice day (ot. Especially my mom - her 62 birthday :-)

Edit: those are all good sites, but to green-check the answer I need a small set with the common icons (I think moreabout 50-70 icons), in many different colors and in 2 or 3 different sizes (for lo-mid-hi definition devices). - If a so done site exists for free :-)