The DWM has since been dismantled. Bill Stone et. al. have created a new autonomous device, the DEPTH-X which will eventually be turned into a rover to explore one of the moons of Jupiter.

This article has some more information:
http://www.space.com/businesstechnol...ed_depthx.html

Some of the scientific references to both the DWM and the DEPTHX:

am Ende, Barbara Anne. (2001). “3D Mapping of Underwater Caves.” IEEE Computer Graphics and Applications, vol.21, no.2, p.14-20.

Gray, Marcus, Fairfield, Nathaniel, Stone, William C., Wettergreen, David, Kantor, George, and Sharp, Jr., John M. (2008). “3D Mapping and Characterization of Sistema Zacatón from DEPTHX (DEep Phreatic THermal eXplorer).” http://www.fieldrobotics.org/depthx/...X_ASCE2008.pdf.