AirPort Extreme 802.11n Enabler Available

We missed it this morning, but Apple now offers for 1.95€ the (in)famous AirPort Extreme 802.11n* Enabler for Mac.
This update is only valid for Intel Core 2 Duo processor (except the 17-inch, 1.83GHz iMac) or a Mac Pro with AirPort Extreme.
This update adds in the IO802.11Family.kext extension, an enabler named AirportEnabler.kext (64Ko).