XtremeMac today announced an updated MicroShield for the second-generation iPod nano. As with earlier models, the clear, impact-resistant plastic prevents dents and scratches on the iPod while still showcasing the music player's design, according to the company. The case includes a belt clip with notches for wrapping earbud cords, managing the cables as it rotates 360-degrees. The MicroShield comes bundled with a Universal Dock adapter that allows the iPod inside to attach to speaker docks and many other freestanding accessories without being removed from the enclosure. XtremeMac is already accepting pre-orders and expects to ship its updated MicroShield on November 6th for $25.