redpotion seems to be the way to go, but that project seems to be in maintenance mode. There are a few other libraries/frameworks from the rubymotion project i

redpotion seems to be the way to go, but that project seems to be in maintenance mode. There are a few other libraries/frameworks from the rubymotion project itself, called motionflow iirc, that seemed like they were the way of the future when I checked out status a few months ago. However they were not finished at the time.