Tilt to Live was a fairly early hit on the iOS App Store. It used the iPhone's accelerometer to make a frantic but fun and addictive shooter. Now, developer One Man Left has released a very different game called Outwitters. We first saw the title at GDC earlier this year, and the final release version is just as nice as the one that was in development.
The game offers up asynchronous turn-based strategy combat, in the same vein as Robot Entertainment's great Hero Academy. But there are a few big differences, the first being that the board is much bigger, and allows for a few new moves and turns. The backend is also built out a lot more. In addition to the usual games with friends and random players, there's a whole matchmaking league system, so the best players have a huge, well-run ladder to climb. There are three different races (one is free, and the others you'll need to buy), each with its own units and resources to deal with.
In short, the game is gorgeous, perfectly designed and offers much turn-based action for players (like me, ahem) who really enjoy moving units around a board like this. Outwitters is a free, universal download, and everything in the in-game store is on sale right now for a limited time.