Voted up. The exact idea I hyped to everyone (and wrote on my name tag) at YCombinator's Startup School and reception in April, so I know it has potential. And registered at Dynadot 3 days ago, the domain registrar I introduced News.YC to this Spring. ;) So, at least you got one vote :). And I know other founders of existing YC companies loved the idea as well.
Good thing that of the two YCombinator founders who were there at the reception, I only talked to Trevor about the idea, and not PG--otherwise I would be pretty upset! Oh well, I'm actually going back to college this Fall per PG's new advice to finish college--after following the old advice to drop out of college--so that's fine that somebody made this. (Had I applied to the summer round, I would have probably been rejected, given that an app like this takes 5 people to make.) The implementation looks good! Good luck!
Obviously, I'm not particularly excited to hear this news, since I was thinking about this idea every day, but on the other hand, it will make it easier when my app launches since it would have been previously demonstrated as a proven idea by somebody else.