I just bought Zuma for my recently purchased 5.5g refurb iPod. I bought Zuma and Scrabble but Zuma says it's compatible with all iPods from 5g to the present. A friend is coming over with their 3g nano so I'll try it out and report back here. Here's a pic. edit: My Zuma version says 1.1, but a friend's copy purchased about a year ago says 1.0. On the store it still lists Zuma as 5g only.