It would be great to get all the Y-combinator folks involved in group projects. Like a group section. Ppl apply to each project and the team leader chooses the developers out of the bunch.

Then they can submit their project to the start-up program, and try to take it to the next level together.

Im more of a strategy/design marketing guy with a programming ability, and I know there are hackers out there with complimentary skill sets. Just an idea!