Hmm, the uv stamp arrangement seems a bit chaotic.  I realize it was a way to compact the mesh, but makes for a difficult work in something like Photoshop or PSP or Gimp.

Lets say I design a WW1 airplane and want the wing and the aileron located next to each other so that the emblem of the country overlaps correctly both mesh.  If the aileron is angled and tucked into another area, I have a LOT of work to do in my 2d app to split the 2d image, rotate, size, locate....

UV templates need as much attention as the detail of the original modeling mesh.

Just my humble opinion.

Eric