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Good news for those of us that like harmony in standards-land: The Wi-Fi Alliance and WiGig Alliances have agreed to cooperate on technology for networking in the 60 GHz band. This is terrific, and not unexpected. The two groups share many members, and a fairly common purpose, distinct from the WirelessHD group which is using 60 GHz for streaming high-def video. (The announcement was set for 10 May 2010 at midnight, but some outlets broke the embargo.)
The 60 GHz band, also known as a millimeter band for its wavelength, can allow up to 7 Gbps in short-range data transmission in the US and many other countries, with multiple channel configurations allowed to operate in the same space. The short wavelength means short propagation, mostly in room.
The IEEE has a 60 GHz task group (802.11ad) that's paired with its sub-6 GHz 1 Gbps group (802.11ac) as part of two separate moves forward to faster WLANs. The Wi-Fi Alliance would likely certify specific characteristics of 802.11ad for 60 GHz.
But it's been seen as quite likely that a single Wi-Fi adapter in the future would handle 2.4 GHz for compatibility and range, 5 GHz for performance and reduced interference (also where 802.11ac is focused), and 60 GHz for short-range super-fast data transfers. Having the WiGig group's specification now aligned with the future of 802.11 and Wi-Fi will make it easier for manufacturers, computer systems' makers, and home and business users.
Competing standards in computer hardware have been clearly shown to stall market development. Competing offerings differentiated by design, features, and integration are were the money is at.