From my perspective, Microsoft releasing WiX under CPL is a momentous step. Since joining around 2 years ago I've been looking out for this move, and can't quite believe the time has come.
Rob Mensching and his team get my congratulations for their efforts in actually making this happen.
The feedback from the dev community has been generally very positive...articles already abound covering this story, one of the lesser C&P'd articles: Openess Can Be Good - ADTmag
Times are a'changing...