http://www.icefaces.org/JForum/posts/list/13622.page
"In light of this development, and after careful consideration of all the options available to us, we have determined that it is not feasible for us to continue support for the VWP (visual design) editor in future releases of NetBeans, beginning with NetBeans 6.7. We regret any inconvenience caused by this situation, however, it is largely outside of our control."