eieio posted some screens of 4G speedtests in different areas, One was Reston. I then checked speedtest.net and browsed by location and found "Sprint", not "Sprint PCS" as in the screens, with 4mbs download speeds. Unless Sprint has some other internet service this would have to be WiMAX? As far as the tower I don't see a future tower in Va. Bch. I do see on in Chesapeake. What indications would that have anything to do with WiMAX? (am I looking at the right map?!) In all honesty Sprint needs a regular tower in that location. The signal is horrid over there, only place I've EVER dropped calls.