Thanks for the advice. I was under the impression that the demo would be unimportant, and since I'm in school right now, I thought I'd go slow at it unless I am accepted.
I can whip up something in two weeks easy (even with school), but I didn't submit a demo in the application because I didn't think it would be necessary, so I focused on developing the idea instead.
I guess what my situation was that I could balance school and the application, or school and the prototype. While I had an urge to work on the prototype I always felt guilty because frankly the application has a deadline, the prototype does not. Actually after the application deadline I was able to get back to the prototype.
I can whip up something in two weeks easy (even with school), but I didn't submit a demo in the application because I didn't think it would be necessary, so I focused on developing the idea instead.