The pCell spatial demonstration [1] is really amazing. If this delivers what it promises, we could finally have the technology we needed to cut the cord entirely for personal/business Internet access and to no longer be at the mercy of Comcast/TWC/Verizon to deploy the last mile. That is, if we aren't just trading one despot for another.
I've been looking for a technical explanation as well.
The best I've found so far are a host of the patents ostensibly associated with pCell implementation [1], [2], [3], etc.
"data centers connected to the antennas perform fast mathematical calculations to create a unique and coherent wireless signal for every person on the network" -OP
1. http://vimeo.com/86746051