I just downloaded yesterdays daily build (27.08.2007) and found Netbeans 6.0 in new look and feel. The logo as well the splash-screen and welcome pages changed. I like the new art work. Beyond that it is faster than m10. It is absolutely usable, but the editor throws still from time to time exceptions. The new page flow editor looks great (especially the animations). Netbeans comes already with some more complicated JSF-samples like "SingleCrudWithTable". There ist still room of performance improvement of the visual editor - but it's usable. Also the EJB-support, JPA (generating JPA-Entities from table etc.) work well - there were no problems.
NEW: Online Workhop Effective WebApps without Frameworks is also coming to: MUC Airport.