Clearwire has made another step towards providing the world with their high-speed 4G internet service, WiMAX by rolling out beta tests in Portland, Oregon with plans to expand to Las Vegas, Grand Rapids, and Atlanta in 2009.

Back on July 2nd, Clearwire leased 3 1-year licenses on the 39 GHz spectrum from IDT Spectrum, the company that owns myriad spectrums across the nation (expect to hear a LOT about them as Clearwire et al buy up spectrums so that their service and equipment actually work!), meaning that they've now got the hardware (mainly provided by Motorola) and necessary spectrum to really get their XOHM tests going.