Now You Can Play Video Games on Your iPod
Free, open source software iPodmame ports classic video games like Pacman to your Linux-running iPod.
Though setting the whole thing up is a bit heady and may be beyond the abilities of a lot of iPod owners (bummer, I know), this is a really cool exploration of the neat things your iPod is capable of doing.
Ipodmame [ipodlinux.org]