As Jim Lamb points out, one of the improvements we'd like to make to our upcoming release of continuous integration support in Orcas is to provide a way to notify users about build events.  He posts:

Well, we've worked up an initial design for a notification applet that would run in your tray (er, I mean "notification area") and keep you up-to-date on the status of the build definitions you're interested in. Here's an annotated storyboard that walks you through the design. Please post comments here and let me know what you think. We haven't even started implementing this yet, so now is the time to give us feedback.

Take a look at his storyboard and let us know what you think.