WIAV Networks [NPE] filed suit against Dell and RIM over two patents related to WiFi enabled handheld devices.  The patents-in-suit were assigned to Metricom and Ricochet Networks before being assigned to WIAV in 2008.  WIAV has filed nine prior suits since July 2008 against defendants including Apple, Kyocera, Motorola, and Palm.  9/12, Northern District of Texas, 3:2011cv02352.