The Twubble with Twitter
Dion Almaer interviewed me about Twubble for the Google Developer Podcast:
If you use Twitter, Twubble can look at your existing friends' friends and recommend new people for you to follow. It's a stupid simple idea, but I think the execution and fun factor have won people over.
I wrote Twubble in a couple nights of hacking in bed after the kid went to sleep. I used the latest Google Web Toolkit milestone which supports Java 5 (flawlessly from my experience). I was writing Javascript code (server and client side) for years before I ever got into Java, but I have to say, you'd be crazy to write AJAX apps any other way than GWT nowadays.