Unity's own CurlehMustache made a series of completely rad wallpapers for your "i" stuff.  There are some inspired choices here, and they were obviously made with a lot of love.

Make sure to hit his page for the complete list, which includes Resident Evil, Mega Man, Tatsunoko Vs Capcom, Monster Hunter, Lost Planet 2, Duck Tales (!!!), Marvel Vs Capcom 2, and a whole MESS of SFIV. Beautiful!

PS- if you are a computer genius, you can probably stick these on a blackberry too.