802.11ac Wi-Fi equipment available in June

Buffalo have announced their AirStation WZR-D1800H equipment will be available in June with 802.11ac. It includes a 2.4GHz 802.11n radio for backward compatibility.
Smallnetbuilder says the Buffalo WLI-TX4-1300H model will be 802.11ac only.
-Update-
Netgear announce R6300 for 802.11ac