http://en.wikipedia.org/wiki/IEEE_802.11ac
I am looking forward to 802.11ac miniPCI cards 
And also topics in this forum: I have PtP which goes only 800Mbit… Where is the problem? 
It’s still on a drawing board … aldo Broadcom did announce the release of first products during 2012.
http://www.netgear.com/R6300#
Real 802.11ac product
announced, not real (yet)
reality the next month:
http://www.engadget.com/2012/04/26/netgear-r6300-802-11ac-router/
Yes, so - not reality at this moment
2-antenna AP, 2-antenna STA, 160MHz 1.73 Gbit/s
this would be nice
“All rates assume 256-QAM, rate 5/6:”
I suspect that will be a challenge to achieve in 5ghz bands (outdoors?) AND will require RB series to have a faster processor? Normis?
two new AC routers from Belkin
http://www.belkin.com/networking/ac-routers/