I played a bunch of games this weekend (Punch Quest, Word Smack, Storm the Train, Rogue Miner, Extreme Road Trip 2 and Wimp who stole my panties). Can't really say any of them deserve a recommendation.
Word Smack (EA) is actually a great game, but you have to go through Facebook (or anonymous login) if you want to play other people async. Sucks. If you liked Letterpress, you will like this game. But the shit matchmaking and lack of stat tracking keep it from being recommended.