It's possible, we guess, though such a tablet would be counter to the arguments made at the iPad launch where Jobs and Co praised the device for being purpose-built to excel at specific tasks -- TechCrunch's device sounds like a general purpose machine.
Nano bar codes are the molecular versions of traditional bar codes--metal nano-particles that have specific, recognizable chemical fingerprints that can be read by a machine, perhaps a UV lamp or optical microscope.
It was up to the mills of Pittsburgh and the machine shops of Cincinnati to make the innovative best-quality goods that the world demanded, and that only specific cities knew how to make.