Military Style Mesh for the Masses http://www.wi-fiplanet.com/news/article.php/3396341
and these extracts from a Fujitsu white paper on WiMAX:
"To further support ubiquitous connectivity, the IEEE is defining a handoff mechanism between 802.11 and 802.16 equipment. Using this mechanism, a laptop could transition from using a WiFi hotspot or enterprise WiFi WLAN to a WiMAX network furnished by a local service provider. This handoff will take place seamlessly and without user intervention while maintaining network connectivity."
"Other WiMAX players will include WiFi product vendors, pure-play CPE companies and traditional networking equipment manufacturers. The WiFi product vendors can leverage their existing sales channels by incorporating WiMAX into their products as a way to backhaul hotspot traffic to the public WAN."http://www.fma.fujitsu.com/pdf/FMA_Whitepaper_WiMAX_8_04.pdf