The Surfacescapes team at the Entertainment Technology Center at Carnegie Mellon University have created the tool I wanted years ago when my self-painted pewter model hefted his +5 Holy Avenger that ravaged evil across the lands of graph paper. An after school Dungeons & Dragon nerds wet dream, graph paper meets Minority Report. It currently looks a little primitive as far as the actual monsters and scenery are concerned but the interface looks spaztastic!