Looks like those new shuffles weren't the only thing to pop up on Apple's store this morning, Apple has also finally released that AirPort Extreme 802.11n Enabler we've heard so much about. We figure there's been enough drama at this point, so just suffice it to say that if you have a MacBook C2D, MacBook Pro C2D, Mac Pro with AirPort Extreme or a C2D iMac that isn't the 17-inch 1.83GHz model, you can fork over your two bucks and update right now to glorious draft-n wonderment.
Update: Apple let us know that you can't identify systems with the Network Utility; the 802.11n capability only shows up if you've used the software update, so know your mac and get the update if you need it. Also, the $1.99 update is considered by Apple to be a site license, so you can upgrade all the machines in your home with the single $2 purchase (if you didn't alright sign up for the router). Not bad!
Update 2: It wasn't entirely clear before, but the launch of the Enabler coincides with the launch of the AirPort Extreme today, too. Don't let the "Estimated Ship: February" on their site fool you, Apple is definitely shipping now.