Umberto Eco on the material specificities of Borges’ ‘1:1 map’ described in his short “On Exactitude in Science” —- http://aaaaarg.org/files/textz/3791-on_the_impossibility_of.pdf
Geoff Manaugh and the New York Times on a new iPhone app that shows visionary projects for new york, at their proposed locations, the content changing as you move around the city, updated by GPS….
Augmented Reality – http://en.wikipedia.org/wiki/Augmented_reality
Borges’ ridiculous map will someday (soon?) be realized in a way that Eco couldn’t anticipate… through invisible layers of metadata……..