Originally Posted by chimpman252
The current version only supports iPad 2 and up. This usually equates to iPhone4 and up or iPod Touch 5 and up, so you might be out of luck
"At the same time, the iPad version will be updated with pinch-to-zoom, first-gen iPad support, Retina display visuals, Game Center achievements, and iCloud save. The iPad version will also be transformed into a Universal app so you can play it on your iPhone."
so after the update it should support ipad 1 and therefore at least be playable on ipod touch 4th gen. at least i hope so otherwise i wont be able to play it.