Whoisi?
Good friend - and fellow Mozillian - Chris Blizzard has just released a long-time "hack in the evenings" project of his: Whoisi. I think the best "one line" description that I've heard for it, thus far is "a wiki-like Friendfeed." It's quite fun - sort of an identity service combined with a wiki combined with a feed reader. All without requiring any form of signing up or logging in. It'll be fun to see how it all comes out in the wash, but for now it's certainly grabbing the attention of some notable people.
Chris has posted a ton of details concerning how the application works. I've had the opportunity to follow his development for a while now and heard about all the interesting issues that he's tackled - related to Python, databases, scaling, and jQuery. I love seeing "for fun" applications finally come to light - and this one is a keeper.
