Microsoft is working on an 802.11n adapter for its Xbox 360, which would effectively double the raw data rate from the currently utilized 802.11b/g. Although there has been no official announcement from Redmond, the adapter has already made its way to the FCC and there's no confusing its purpose; the FCC label reads "Xbox 360 Wireless N Networking Adapter Microsoft Corporation."
More: http://www.techspot.com/news/36211-microsoft-prepping-80211n-adapter-for-xbox-360.html
More: http://www.techspot.com/news/36211-microsoft-prepping-80211n-adapter-for-xbox-360.html