It use to be part of the Fortress Paul collection, which is soon to be arriving. Now it is part of the N.T. Wright collection (I can't remember if it was always there, but I seem to remember thinking that it was only his popular stuff, not his academic writing in that pre-pub collection.)
I only mention it, in case anyone was expecting it as part of the Fortress Collection, and with it not there, might not want the collection. (I am one such).
This might have been discussed to death in the forums already, but a quick search didn't bring it up. Sorry if I missed it.
My earlier rant: http://community.logos.com/forums/t/31139.aspx