Remaking this thread because I need more games to play.
Outwitters -- Totally awesome you should play with me
Disc Drivin' -- Cool little racing game where you flick a disc around a race track.
Oddbot -- Not really a game. More of a distraction but I find myself coming back to it.
Ascension -- Deck building game like dominion. Cool theme.
Scrabble -- What you'd expect except people wait years to make their moves and are probably using online word finders anyway.
Also various baseball games. Haven't found one I truly like, though.