It seems like a cool concept. However I would like to see it have some type of functionality. Am I missing something. This appears to be a demo to me. As such I feel a little bit duped that it doesn't make it abundantly clear that it is just a demo.
If I was a VC I would be frustrated that this does not at least have some type of simulation even if you don't have the multi-user competition working yet. At least coding against a clock or virtual opponents would be a nice touch. To me this is not proof of concept but just a story board if you will, good marketing. I am sorry to be harsh but I hate going somewhere with the promise or implication of one thing and then getting something different.