I see several good things on the list of new features. The rc-based boot process is definitely a good idea. I haven't had the issues with the fossil filesystem that some have, so I don't know about cwfs as the main on-disk fileserver, but I'm looking forward to trying it out. A lot of the contributors have been doing good things in the Plan 9 world for quite awhile now. A list of some of the new features is at http://code.google.com/p/plan9front/wiki/features