Kian and I have been spending out gaming time going through Super Mario Galaxy and "have 5 stars left before we can save the princess!" -kian
After that I'm not sure what to move onto next...which always seems to be a dilemma for me. We've started playing some of Eternal Sonata since I can do most of the moving around and read the dialogue to him then he gets to control a character in the combat. It's working out OK, but there's so many cut scenes that he gets bored.
We're looking forward to the Monsters vs Aliens movie and I'm hearing the game has co-op...so maybe that will be worth a look