 WiMAX was originally developed to deliver fixed wireless service with wireless mobility added in 2005.CDPD, CDMA2000 EV-DO, and MBWA are no longer being actively developed.In 2011, 90% of the world's population lived in areas with 2G coverage, while 45% lived in areas with 2G and 3G coverage, and 5% lived in areas with 4G coverage.