This issue went on sale 7 weeks late from the solicited shipping date of this issue. The contents of this issue were originally solicited to be in issue #661. This content change was announced by DC via a press release on 2007-02-27.
Merino also signed the cover image as seen in the reprint, but on this cover it was hidden by the UPC.
Story continued from issue #658 and continues in the next issue. In promotional materials, this is called the start of the second half of "Camelot Falls". The book that Lois is reading to Chris on page 21 is an homage to the golden age Flash's three friends, who were frequently called "The Three Dimwits", and looked like that cover illo. And the authors listed on that book are an homage to that Flash's creative team, E. E. Hibbard and Gardner Fox.