Based on the 802.16m specification, the WiMAX 2 standard is expected to bring theoretical mobile download speeds of up to 100Mbps, providing lower latency than its predecessor. He also noted that 802.16m will be backwards compatible with 802.16e, the current WiMAX implementation used by service providers in the United States. This means carriers will have little trouble supporting the faster speeds, and infrastructure upgrades should come at relatively low costs.
Currently, Clearwire's WiMAX service tops at around 3 to 6Mbps and is available in nearly 50 U.S. markets through dongle modems, mobile hotspots and the Evo 4G handset. Reviews for a second WiMAX capable handset from Sprint, the Samsung Epic 4G, have started to roll in and so far it's looking like a strong contender. Priced at $250 with a two year contract, after a $100 rebate, the device has a 1GHz Cortex A8 Hummingbird processor, 4-inch Super AMOLED screen, slide-out QWERTY keyboard, 5-megapixel camera and a front-facing VGA camera for video conferencing.