QuickerTek announced the immediate availability of its 802.11n AirPort Extreme upgrade for Appleis Mac mini on Monday. The upgrade kits requires an Intel-based Mac mini, and includes an 802.11n card, antenna, software, tools, and installation instructions. The 802.11n Mac mini upgrade is available at the QuickerTek Web site, and is priced at US$179. QuickerTek also offers the upgrade with installation for $249.99.