June 30, 2012 at 10:29AM BAE Systems' NAVSOP does positioning without GPS, makes sure the only jammin' going on is yours
June 21, 2012 at 11:42AM Google files for a patent on peer-to-peer location finding, says cell tower triangulation is for chumps
March 16, 2011 at 8:16PM iPhone Personal Hotspot transmitting GPS information to tethered iPads? (Update: no)
July 19, 2010 at 4:27PM RIM finally catches up to the competition with non-GPS-based BlackBerry 'Locate Service'