Do apps count?
I am addicted to Words With Friends for the iPhone, which is basically online scrabble. I love that there is no time pressure in the game- make a play and then once your opponent makes a play you will receive a push notification. Some games I finish in an hour, while others can drag on for a few weeks.
They just announced that it is now available for android as well.
http://itunes.apple.com/us/app/words...322852954?mt=8