I've tried WoW on the MSI Wind (pretty standard Atom 1.6GHz with Intel IGP and 1GB RAM). It worked. That's about all I can say about it. It wasn't necessarily that great of a gaming experience, but it functioned. Everything was turned down and it was still choppy. Note that these days I game on a GTX 260 so someone who has always gamed on integrated video might find the netbooks to be acceptable.