There is a great article by Gaia Clary in the SL Forum: Blender 2.68: Weight Tools reworked. She is explaining how weight painting in Blender has improved. Tools work as one intuitively thinks they should. I see that as a big improvement. I’ve fought with Blender weight painting for some time.
Also the documentation has been updated. See the Vertex Groups section of the 2.6 manual.
Blender 2.67b is currently the stable release. But, a Blender 2.68 Release Candidate is out. See the Blender download page for the 2.67b version. There is a candidates download page here.



