While we are throwing around clones of threes, here is my SEXY clone of titled Menage a Threes. Heh. http://www.kongregate.com/games/honkskillet/menage-a-threes

Also, protip: to get high score choose one direction that you will never push towards. You'll end up with a gradient of high value tiles on one side, lower on the other, which desirable.