Sprint WiMax, Bro
Broadband Reports picks up on a Yonhap News blurb that Samsung will provide WiBro equipment to Sprint-Nextel for a trial. (I haven't seen an announcement from either Samsung or Sprint-Nextel.) Update: Sprint-Nextel has an announcement out.
Sprint-Nextel has previously trialed Flarion (now Qualcomm) FLASH-OFDM equipment and IPWireless TD-CDMA equipment, and has announced trials of Motorola WiMAX equipment.
There would not seem to be a great match between the 2.3 GHz spectrum that WiBro typically operates in and the 2.5 GHz BRS/EBS spectrum that Sprint-Nextel has so much of, but the same could probably be said for FLASH-OFDM and TD-CDMA.
If I had to guess, I'd guess that Sprint-Nextel will use the trial to look more at the mobility aspects of broadband wireless technologies than the WiBro radio technology per se.