Developer Movement

I started yesterday on one of the games that I will be submitting for the Microsoft Developer Movement. Going to be a simple tunnel game. Basically you are constantly moving forwards through a tunnel and obstacles are placed in your path, however to navigate around them you will need to actually move your phone. I'm not sure yet how large the tunnel will be (determining how much you will need to move your phone) but I'm thinking that the whole tunnel will not be visible on screen at once, that way you NEED to move your phone around to get play the game. Hopefully I can get some good progress done today so that I can focus on school when the week starts again.