Because of a conflict with another similar application, we've renamed our CI Monitor application (which I blogged about here) to, appropriately enough, "CIMonitor".
The GitHub project is here: http://github.com/pivotal/cimonitor
CI for the project is here: http://ci.pivotallabs.com:3333/builds/CiMonitor
The Tracker project hasn't moved, but has been renamed: http://www.pivotaltracker.com/projects/2872

...you could even shorten it to just Cimon and then play the whole "Cimon says... Build Broken!" game ;-)
Tracker project hasn't moved