WiMax: Comcast to add 4G wireless service in Chicago -- chicagotribune.com

Comcast Corp. is expected to launch WiMax wireless service Tuesday in Chicago, joining a lineup of technology heavyweights offering ultrafast broadband speeds.

WiMax is a fourth-generation, or 4G, wireless technology that delivers a faster and more reliable connection than is available through 3G networks. Clearwire Corp., a company created in 2008 by merging the wireless broadband units of Clearwire and Sprint Nextel Corp., set up the WiMax network in Chicago and launched it a month ago. Clearwire and Sprint offer separate services using the same network...