CruiseControl.NET
Well you have probably already read it at
weblogs.asp.net but just in case you didn't read it between all those "my site is worth shit" posts.
CruiseControl.NET 1.0 is released. CC.NET is such a small kick ass app that every .net project with a large component set or developerbase should use. Especially with the CC.NET tray application that notifies you of a broken build.
I thought that it would stay an RC just as nAnt 0.85 RC3 :-)
This is definitely on my list of top 10 must have developer tools.