said by phattieg :

Clearwire is NOT WiMax. WiMax is a point to point delivery, where a directional antenna is pointed (beamed) to a base station. The Clearwire antennas are inside the modem they give you. It's towers are leased from local cell phone carriers, and the cellular grid becomes your Clearwire grid too. Essentially it's WiFi with multiple access points. It uses a cell phone equivalent standard to negotiate which tower to use. Wireless cracks and technology interest me, and I read up on Clearwire's modems and found that info. I *think* I read somewhere that they use Verizon for something, maybe tower space, maybe network space.