[extropy-chat] Step towards augmented reality

[Adrian Tymes]

http://news.bbc.co.uk/2/hi/technology/4081289.stm

Embedded transmitters, using widely-deployed (rather
than proprietary) formats, sending data about
themselves to any readers in range that care to
accept their signals (thus the importance of the
format: start off with a large userbase, so that the
network effect makes this worthwhile from the first
deployment).