I’m very interested in designing the GUI for our next products we’ll be working at. MDI is *very* outdated, I won’t ever bother to search for .NET components in this area. Tabbed GUI like VS.NET’s are also nice but not for our application (they fit better with Firefox). SDI is the latest trend in this area, so we’ll let Windows’ window manager do its job. Another issue are the panes – here the old-fashion style is the using docking ones. 3D Studio’s scrolling panes are original but not very usable, and the conclusion is that floating panes is the way to go.