[Someone]

I hadn't heard of it yet when I wrote my earlier reply, but intel demoed a WiFi solution a few days earlier: http://www.computerworld.com/s/article/9231264/Intel_demos_7...

http://techreport.com/news/23303/marvell-wilocity-partner-up... writes about it:

"We're told latency will be in the order of "microseconds, not milliseconds"

So, latency will not be much of a problem with this solution.

I do have the impression that this is called Wi-Fi only on commercial grounds, not on technical ones.