Of course, because it is getting faster and faster, better and better editor, JEE and Glassfish support,.. I could get on and on.
But the greatest thing, for me at least, is that when I open a file it gets opened on the far right side of all editor tabs. NetBeans 6.0 had this issue with this and files got put somewhere in the middle of tabs, sometimes at the end, ... The algorithm was a total mistery for me.
I just hope this won't get lost by the time 6.1 is released.