Very interesting. Also sounds like a great way to frame someone. Don't see any reason why these fingerprints can't be forged.

Neat blog, with a catchy tag ("The End of Anonymous Data and what to do about it").

The previous article mentioned upfront also looks interesting - Everything Has a Fingerprint: The Case of Blank Paper (http://33bits.org/2011/09/13/everything-has-a-fingerprint-th...), especially the part about using run-of-the-mill scanners instead of SEM.