I'm here in Austin, Texas this week for the Game Developers' Conference, and Limbic Software's Arash Keshmirian kicked off the iPhone gaming track this morning with a panel about how the company found success with their TowerMadness tower defense game. Limbic's story is similar to a lot of others that we've heard before -- the app released to little fanfare, but a few solid tweaks, strategies, and even lucky breaks after release led to lots of sales and lots of development lessons.
"What really started the company," said Keshmirian, "was when we decided to make the game free." Like many other developers, he and hi
