gary lawrence murphy garymcanadacom j james rogers writes j part makes app killer map j sorts data layers top core topological data j got ah ok sample applications come mind although none require wireless would dvd nonetheless forestry maps terrain essential predicting spread forest fires esp overlaid type vegetation recent waterfall c farmingconservation use highresolution terrain overlay water tables watershed info gary lawrence murphy teledynamics communications inc business advantage community software httpwwwteledyncom computers useless give answerspablo picasso 09 sep 2002 003958 0400 earthviewer whoa