I'm using these drivers (got mine from Sager site) on my Lenovo T510 with the 7260-AC.
I think I know why Intel hasn't released them to the general public yet. Not quite ready for prime time, it seems.
It works, but when the driver switches to the 5ghz range, it gets really choppy and unreliable, often losing ping completely. Seems like lots and lots of packet loss.
I suppose it could also be the antenna, or the card itself. But this laptop has a 5ghz antenna which functioned perfectly with my old dual band Advanced-N 6200 a/b/g/n NIC at both 2.4GHZ and 5GHZ. I've made sure the antennas are hooked up correctly (unless the terminals on the card are mislabeled).
So I either have a bad card, or (more likely), these drivers are at the moment, no good. Probably going to throw the old 6200 back into the laptop today.
Has anyone else had these issues with the 7260?