Awesome game! I've long itched for great mobile games to play on the go, and this game absolutely fits that. It's been a blast to progressively get better and play harder difficulties (and curses) and is _so_ easy to pick up and put down.
Something that I was also astounded by is the polish. At first, I saw it in simple interactions like omitting turn confirmations for non-effective moves, but over time there were more and more nice polishes that just makes the experience even better.
I was sitting with a friend who watched Northernlion play which got us both hooked.