Yahoo Hack Day was a momentous event just because it happened. All Yahoo's guest developers had a tremendous time, geeking-out and partying with great music and plenty of beer opportunities.
There was a competition, but the real winner was Yahoo the company and the many good people who work there.
The world thinks of Yahoo as a new company, but in internet-time their at midlife crises time - but they have the people, the resources and the energy to remake themselves again as Yahoo 2.0.
I've been a Yahoo since the first day I stumbled onto the WWW when there were less then a thousand Websites. I use MyYahoo everyday and Yahoo Sports is how I track the Yankees and the Knicks. Yahoo Video has tracked all the videos I posted in the past week and they discovered them, I didn't have to do anything. If your a blogger that's the way we want the web to be - aware of where you are and what you're saying - Yahoo!