Bluetooth - in its last throes

You see these guys all the time in town [that's London, UK, for overseas readers]. I couldn't resist chatting to one the other day, to ask just what kind of ads I would get if I switched my Bluetooth on.

He took one look at my phone and shook his head. "Nahh mate. Doesn't work on iPhones."

So that's more than 50% of the market lost before they start. Nice idea, but without iPhone it's not really going anywhere, is it?