JAVOedge Pioneer Book Case for the Barnes & Noble Nook Color / Nook Tablet (Cocoa) - Latest Generation
This is a great nook color cover.  I wanted something that felt 'book-like', was simple and sturdy.  It has all the right cut-outs for the nook color navigation/control buttons, including one at the back for the speaker.  The leather cover is slim, not bulky, and it just feels good.