CI server comparison

Found out that IBM developerworks has posted an article comparing CI (Continuous Integration) servers. The products tested are CruiseControl, Luntbuild, and Continuum. Sadly I miss a feature-by-feature comparison of the product. I have used CruiseControl and Luntbuild in the past (the later just very briefly). I’ve been hoping to take Continuum for a spin, and perhaps it’s about time.