I read IntelliJ IDEA's EAP news list almost daily. I find it quite interesting. It is really a good proof to see why IDEA is so good and to see its worsts and bests :). One the one side there are wows and, on the second loud whines, on the third lots of good, intelligent and thoughtful suggestions. Some of the whines and worsts get addressed quite quickly as one can see from the Selena builds' (codename for IDEA EAP release) changelogs and numbers of closed bugs from IDEA's Jira. Some don't.
One post I've read today have given me nice tip about ui design. It mentioned this bug.