Deltenna's WiBE rural broadband device

Link: http://www.engadget.com/2010/10/31/deltennas-wibe-rural-broadband-device-swan… Engadget highlights this ‘super MiFi’ device for mobile broadband in rural areas - the antennae is adept at locating and hanging onto much weaker mobile signals than would otherwise be possible with a connection range typically between three and five-times that of a 3G dongle.

This tech’s great for rural areas (and it costs over £400), but I wonder if it could also be adapted to operate in normal mobile WiFi devices to lock on to the least heavily loaded mobile cell towers in very busy areas?