Sprint has announced its 4G plans:
Sprint has announced that it intends to offer a joint CDMA-WiMAX device and service as a Mobile Virtual Network Operator (MVNO) to the new Clearwire service. The product which has apparently in the works for some time will be marketed as "Sprint 4G." Plans are that dual mode CDM-WiMAX phones will hit the shelves by the end of 2008.
CLEAR is the new brand name for the Clearwire-XOHM-Sprint-Google-Intel-MSO company service. (It was changed from Clearwire to Clear after the XOHM-Sprint/Clearwire merger was complete). It should be interesting to see what the handsets are like and how much battery life. WiMax uses more battery power than Wi-Fi (supposedly).
Ma Bell is using Alvarion WiMax in Alaska, where is a challenging landscape, according to DSLReports.