Startup Weekend Project Selection Advise

I thinking about why Startup Weekend NYC wasn't able to launch the product into beta by Sunday. Everyone on Sunday was going full steam trying get it done, but alas it didn't happen. I think it was due to selecting a project that was a bit ambitious. The concept was a great one, but once you got beyond that, the functional and tech specs started to become a complex beast. [more in another posting -- wanted to get this out before the next Startup Weekend]

Advise when considering choosing a project:

Functional Specs: You should be able to list out all in 3 to 4 sentences OR even less.

Design Specs: If it takes more than about 6 sentences, you are in trouble.

People Skills: Ask who is actually coming back for Saturday and Sunday and their skills set and level.