We recently shipped Expression Blend, the product I had been working on for the last few years. I love the product and the team, but it was the longest project I've ever worked on, and I was offered a great new opportunity: to work on WPF, both the desktop version we shipped with Vista and the new Silverlight component. The work isn't that vastly different. From many years working with the WPF team, I know most people very well already. I go to many of the same meetings, just sit on a different side of the room. But of course there are still those vast areas, little things about the new team, of which I am completely ignorant. Which is what I wanted: to learn a lot of new stuff. Be careful what you ask for, as they say.