I went to their exhibit last year which featured Dwarf Fortress (as a mural) and Passage (playable)...there were a few other games too, including he PS3's Little Big Adventure...I think Katamari is actually on display as part of their Century of the Child exhibit right now

http://tumblr.eyeheartnewyork.com/post/9525690645/at-the-mom...

I hope the games are playable...what better way to cement the idea that gamess are art in the mind of kids who may see art initially as just paintings and Greek sculpture?