http://lists.blender.org/pipermail/bf-taskforce25/
http://wiki.blender.org/index.php/BlenderDev/Blender2.5

by the way, the 2.5 development is interesting to follow if you are interested in such things.

http://blenderartists.org/forum/showthread.php?t=139677&page=13

there are also some nice other projects going on like projection painting. you can already downloads builds from graphicall.org.