Very informative video by the Victorian eResearch Strategic Initiative (VeRSI) on their combination of ArcGIS with their scenario plugin and the 3D game engine SIEVE for visualization; all linked to a touchtable user interface.
Ecoinformatics Touchtable from VeRSI on Vimeo.
Immersion has developed as part of the EU’s V-City project, a collaborative tabletop interface to interact with 3d city environments. The prototype was shown at Siggraph 2010. The multi-view support allows two users to view different viewpoints of the model at the same time from the same 3d mockup.