MobiMate's HandScape - A full featured launcher with a powerful file manager and movable toolbars. You can even launch Documents To Go files from the launcher. - http://www.mobimate.com/handscape
Launcher X - Application launcher optimized for speed and functionality with skins. Launcher integrates a VFS memory card file manager. - http://www.launcherx.com/
SilverScreen by PocketSensei - A Palm application launcher featuring unprecedented style and functionality. Beautiful. - http://www.pocketsensei.com/