For techno-wizardy such as WiMax (Worldwide Interoperability for Microwave Access) to become commonplace on cellphones, the first thing needed is a subminiature chip that does all that longer-distance WiFi stuff while keeping the handset small. That's what Japanese company D-Clue Technologies has done with the WiMax chip that's the size of John B.'s kid's pinky fingernail, just 5mm square.
It reportedly can boost the signal it receives by 50x, theoretically giving you a lot more range then you would normally get with WiMax, which is normally good for about a click (1km). Now all they need to do is build every wireless protocol in existence onto a chip that's the size of the head of a pin, so they can all dance together in peace and harmony.
D-Clue Tiny WiMax Chip for Mobile Phones [I4U News]