Apple has quietly added a new accessory for the second-generation and new iPads in the Apple Store today: the Smart Case. This is a separate product from the original Smart Cover that debuted with the second iPad. This was not announced at the WWDC Keynote.
The new Smart Case is basically the Smart Cover, except with a matching back shell. The product is made of the same polyurethane material and is available in six colors. Because of the included back cover, the Smart Case comes at a $10 premium over the polyurethane Smart Cover. It can also be engraved for free if ordered online.
You can get your own Smart Case for your iPad for $49 in the Apple Store.