Looks like Google's Nexus One will soon see support enabled for Wireless-N in the Broadcom chip in the phone.
If you've already rooted your Nexus One, not to worry, Cyanogen (Steve Kondick) has already included the source in his next release....though today he said via Twitter there has been another firmware update since the last one a week ago.
The link includes a low-quality video of the update in action after it was compiled from source by one of Cyanogen's mates.