Wilocity is one of the main proponents of the even faster WiGig (or “wireless gigabit”), which can theoretically hit speeds of up to 7Gbps, with the downside of using frequencies that are easily blocked by walls. Even thin cubicle walls may block signals, Wilocity acknowledged.
I have 5 Ghz 802.11n throughout my home, but I never reach anywhere close to the theoretical maximums because the signal is easily blocked by walls. I don’t see the appeal of faster Wifi if you basically have to be in a line of sight with the router. More than speed improvements, we need resilience to physical obstacles and interference.