Just came across this
Same as Duemilanove but with a smaller USB connector and some rearranging of the surface mount parts, leaving a 14 hole x 6 hole (and a 15th x 4 hole) area on 0.1 centers for mounting other stuff! Cool!
One more long row would have been great -then could plop 14 pin dips right in there! Or one more short column to fit in 2 16 pin dips.
Can only cram so much in & still fit all the other traces I suppose.
Robert