A nice twist on the typeracer style games. Was very fun to play.
Probably a very dumb take by me, but while the graphics are awesome, I personally think this would be more welcoming with a clean, flat UI. To me, the current graphics give a impression of game you have to sit down for, I see this as more of a website-esque game. As stated, this is personal opinion and I'm not trying to take anything away from the current visuals, plus, your graphics and SFX really sell the battle aspect of Scrabattle.
If this gets consistent players, Scrabattle will probably replace my typeracer procrastination sessions :D