Being a gamer myself there is always that point where I could go and do exercise or I could finish that next level and then usually I end up not going to the gym.
Now there is a solution for my first world problem. BitGym has created a control system for playing iOS games while you are on your favourite exercise equipment. Right now it is a racer (that looks a lot like Outrun) and you control the cars steering with you head and your acceleration is based on your exercise rate.
Check out the video:
nifty little tool, but I am not sure if the movements you have to do to get through the game are good for your posture