Actually, Barnes & Noble has had a division for making public domain books for a very long while --- mention of it in David Silverman's _Typo_ --- before reading that though, this review of it is about right:
http://www.amazon.com/review/R2OX6D3...55&store=books
though I was a bit harsher in my review:
http://www.amazon.com/review/R3HQHO9...=&nodeID=&tag=
William