In the last round, we got an e-mail from PG back within hours. It said, basically, "Too many uncommitted founders. Ditch some and hire them back as employees when you have money." We had submitted one day before the deadline (I'd thought it was half an hour actually...I misunderstood the deadline), and he encouraged us to resubmit if we could deal with the founder issue.

We ended up getting rejected anyway, but he turned out to be right. Basically, if there's an obvious problem with the application, he'll point it out to you. Don't expect him to write volumes or fix something that's so far out in left field that it's hopeless, though. Maybe a paragraph or so.

I also got back a long response from Trevor when I applied to SFP05. In retrospect it had a lot of good points, though I wasn't ready to hear them at the time. I doubt they have time to do that sort of detailed fixes/clarifications now, though.

Wow, I remember when this was brought up before in other threads, everybody who answered said they just received a standard rejection notice.

I got an email from Paul and a call from Jessica, both asking why we were doing this now as undergraduates. I think it's a very good sign if you get some interaction with them before the deadline, but it's not a bad sign if you don't get any feedback.