I started a new open source project on GotDotNet this morning. NTeam will be an open source alternative to Team System, will make use of the open source projects all ready available such as NUnit, NAnt, etc., and will target small- and mid-sized development teams. If you are interested in joining the workspace, join through the project page. I am really excited about this project and hopefully, it will fulfill the needs of those teams feeling shunned by Microsoft.
My good friend Alan Stevens
has all ready joined the project and I hope a few others will soon. We are anxious to get everything rolling.