Barnes and Noble has announced the Lyra Book Light case for the Nook in their online store. The cover is made of polyurethane, and uses a polycarbonate clip mechanism to hold the Nook in place. The LED light assembly is made of aluminum and plated chrome. Three AAA batteries are required, and they fit into a battery compartment on the back side of the case. There is no price nor estimated ship time available for the Lyra case yet.