We just finished writing a brief paper for the April 2009 issue of Geospatial Today entitled "New Developments in GIS for Urban Planning". The paper basically covers new the tools and techniques being developed at CASA which we are targeting at urban planners. Many of the tools are associated with visualising urban problems and their solutions.
Virtual London within Google Earth
Batty, M., Hudson-Smith, A., Crooks, A. T., Milton R. and Smith D. (2009) New Developments in GIS for Urban Planning, Geospatial Today, June: 40-43. (pdf).