Apple is widely expected to launch new Macs at WWDC in June, and featuring in those new Macs you can expect to see 802.11ac Wi-Fi.
Photos of a Broadcom Wi-Fi Bluetooth card are now circulating, claiming to be from a new Mac line up that will support 802.11ac.
It is likely that the next generation of MacBook Air, expected to launch at Apple's WWDC next month, will feature the new, as yet unratified, standard.
It is suggested that the new card, which is a similar design to those found in current Macs, has been custom designed for Apple.
In April Apple released a beta build of OS X 10.8.4 with a reference to the new, as yet unratified high-speed 802.11ac '5G' WiFi standard.
The new standard, sometimes referred to as 'Gig Wifi' or 5G WiFi, is the successor to 802.11n. 802.11ac promises bandwidth of up to 1.3Gbps. In comparison, 802.11n products provide connections of up to 450Mbps.
However, the standard is still in Draft, not having received final approval by the IEEE, yet. This approval isn’t likely to come until later in 2013. This doesn't mean that Apple will wait until the standard is approved – Apple has shipped products using draft versions of wireless standards in the past (see 802.11n).
Back in January it was claimed that Apple is working with Broadcom to incorporate that company's 802.11ac chips in its next generation of Macs. The new technology will bring superfast WiFi connectivity to Macs, speeding up throughput as well as improving coverage (it can increase the distance from which you can connect to an access point), and also supercharging Apple's AirDrop features and WiFi syncing.
Another indicator that Apple would be incorporating 802.11ac came in January when Apple started seeking a Gigabit Wi-Fi engineer.