Ups! August passed, my holidays finished, second work week... and I haven't written much lately. I will partially fix that by updating my Linux World Domination project (you can read this May 2008 post for an intro).
As usual D2D means "days to domination" (the expected time for Windows/Linux shares to cross, counting from Feb 3, 2008), and DD2D means difference (increase/decrease) in D2D, with respect to last report. CLP means "current Linux Percent", as given by last logged data.