my modest experience:
1. facesIDE - doc says that it should show u the preview. i can see preview only when making very basic pages:/
2. m7 nitroX - only jsp editor is free. it simply shows rectangles representing your tags (also jsf tags). with somme imagination u can see layouts;)))
slawek
Anyone using a gui tool with MyFaces? Mostly just interested in quickie layouts w/o having to hand code then compile to see what it looks like - backing beans I can do manually.