I wanted a BPv4, and I thought I'd update it for the 'Sick of Beige' case series.
I chose the DP6037 footprint. I had to bring the IO connector in a bit, but otherwise, it fit pretty well. I had to move a few vias and things near the keepout areas, as well. I updated the date (2012 Sept from 2010 Jun) and updated the version number (4v2 from 4v1). The IO connector will be right near the edge, but I don't know how much clearance will be needed between the board and the top of any case in order to make the push buttons accessible. It probably needs some further refinement.
I'm thinking of making a Seeed Fusion order. PM me if you would be interested in a spare PCB, if I have any.
Caveat: These files are in Eagle 6.2.0 format.
[edit: deleted attachments, should have found ones in SVN instead]