These sort of competitions really can deliver excellent stuff, but I don't think I'm built for them. Perhaps if I was on a vacation, one week could be doable for me. Dunno. I have to have a set of development tools I'm extremely comfortable with and proficient in, and also be in a certain game dev/programming form to manage such short development cycles, which I'm currently not in.
Ludum Dare comeptitons are even more insane. 48 hours development cycles! And they still result is wonderful games. I rather not think about some of those game dev wizards. Can be depressing comparing with them.