I just got my first edition of Untitled (300 x 404, after Untitled (Cowboy), 2003 by Richard Prince) from the printer. It's a 1px = 1mm version, which came out to be 12 x 16 inches, inkjet printed on aluminum.
Though it's crazy to feel any sense of accomplishment for an image I appropriated whose fabrication I outsourced, I'm actually kind of stoked. The print looks fantastic, with a graininess that doesn't map to the supposed pixel dimensions.
When you zoom in on a screen, a pixel is so nice and tidy and square. But unless you're a mosaicist or a North Korean cardflipping stadium extravaganza director, physical pixels are probably not going to be square. Who knew?
Anyway, since it cost the same to make one as a dozen, there's an edition of ten, with a couple of proofs. If I had a dealer, a gallery, an artist career, or an idea to have any of the above, I'd probably sell them. I'm sure they'd be cheaper than the Richard Prince.
update: Just found out via Joerg's post that the original photographer was not Jim Krantz, but Sam Abell, the great National Geographic photographer. He shot it in 1996 for Leo Burnett, Marlboro/Philip Morris's agency. PDN had an interview with Abell about it last year, on the occasion of Untitled (Cowboy)'s prominence in Prince's Guggenheim retrospective.