We’re in Boston and working on the road, so we brought our current mobile internet implement of choice, the Sprint Overdrive 4G. When we fired up the Overdrive we were surprised to see the mobile router connect to Sprint’s 4G WiMax network. Boston is on Sprint’s 2010 4G launch roadmap, however a release date has not been publicly communicated. Anyone in the greater Boston area with an Overdrive getting the 4G goodness?