I have been looking for an affordable way to make a custom video game controller for my quadriplegic brother, who has use of his arms but not his hands. This should make it very easy to do! Using arcade style switches, I will be able to build a large (arcade style) game pad that can sit on his lap. He has been in his wheelchair for 11 months now, and he 'was' a very hardcore gamer before his diving accident. I've come up with a lot of things to make his life easier, but the controller has always been outside my areas of expertise.
When I first saw the Makey Makey- I knew there were a handful of ways I could help my brother with it. I ordered two already, and will probably have use for several more.