GERMANTOWN, Md., April 2 -- Hughes Network Systems, LLC (HUGHES), the world's leading provider of broadband satellite networks and services today announced an agreement to develop and implement software that will power the satellite capability in SkyTerra's and TerreStar Network's next-generation integrated device chipsets. This software will enable the GMR1-3G satellite air interface standard to run side-by-side with cellular standards in a commercially available, software-defined radio (SDR) chipset being......