In a development that appears from left field, the Chinese government has banned equipment that doesn't conform to WAPI: Never heard of WAPI (Wired Authentication and Privacy Infrastructure)? You're not alone. Neither the IEEE nor the Wi-Fi Alliance has information about it, either, except that it doesn't include Advanced Encryption System (AES) support.
The Chinese government's standards agency developed WAPI, and equipment cannot be imported or manufactured for domestic use in China after Dec. 1 without WAPI in it. Perhaps WAPI has a backdoor for government or is the brainchild of a domestic firm? Unknown yet.
Intel and others expect to skirt the requirement until at least June, because devices manufactured in the country or imported before Dec. 1 or are part of contracts for delivery that don't support WAPI are still acceptable to sell and use.