I searched the forums here for this and as far as I can tell no one posted it yet. In Ann Arbor, Michigan they've begun preliminary testing on a real life ARO system.
http://www.mlive.com/living/ann-arbor/inde..._student_1.html
"Imagine going for a walk and carrying a wireless device that talks to you - telling you about what's on the menu at the restaurants you pass, explaining the history of a statue on the corner, or letting you know that a public bathroom or bus stop is nearby."
Heh - I'm pretty sure everyone here can imagine this!