netbeans 6.8 RC2 is out and much improved in terms of performance over 6.8 beta and 6.7.1.
I am using RC2 for my web app development, its early days but looking really good this time. Will post more when I have had time to use it more this week.
Still no Apache Geronimo support though, shame.
RC1 wasnt much use to me, I tried it on a couple of different machines and could not get web apps to deploy due to missing dependancy issues out of the box, this is fixed in RC2.