How cool is this?
My freelance project is kicking my a$$, so I don't really have any time/energy to discuss this further.
Update @ 10:22 AM
By rights I should have included a link to the Cartophilia: Maps and Map Memorabilia blog, which is (a) where I first saw this map, (b) where you can find some additional photos of and actual commentary about said map, and (c) a totally awesome addition to my RSS reader. My apologies.