AirMech is a free to play futuristic RTS with a huge online multiplayer following. Over a million players already on desktop. The mobile version is in testing right now and could be available within a couple months. But, like many things, it's all about timing.
The main goal of the mobile version - which Carbon Games Co-Founder James Green isn't really sure they will make money on - is really to give players a choice of where to play. The ability to play on the move and while away from their PCs is a promising idea for many AirMech players.