iBurst (or HC-SDMA, High Capacity Spatial Division Multiple Access) is a wireless broadband protocol (can be compared to WiMAX).

It is for example deployed by iBurst.com.au (PBA) in Australia.

There is an ib wireless broadband driver (sourceforge) for Linux.

Multiple tools exist to manage and switch network profiles based on the physical location:

• metaconf (written by Gustavo Niemeyer): a generic tool multiple configurations, which can use arping to detect the location
• guessnet: supports ARP/wireless/pppoe probes
• divine: uses ARP requests
• whereami: allows to run a various number of detection hooks, including divine

More on the Network discovering... too many options thread from the debian-laptop ML.