Looks like there will a WiMax/WiFi chipset integrated into iPhone -- from Apple's CPU partner Samsung:
http://www.wimax-industry.com/ar/12e.htm
"Samsung has committed to delivering six WiMAX-capable devices (including Ultra mobile PCs and personal media players); Samsung also plans to enter the WiMAX chipset business;
Intel completed the design of a single-chip, multi-band WiMAX/WiFi chipset that it will sample in card and module forms in late 2007;"
http://www.wimax-industry.com/ar/12e.htm
"Samsung has committed to delivering six WiMAX-capable devices (including Ultra mobile PCs and personal media players); Samsung also plans to enter the WiMAX chipset business;
Intel completed the design of a single-chip, multi-band WiMAX/WiFi chipset that it will sample in card and module forms in late 2007;"