So the bins were tracking how many people have smart phones but could data mine to a greater extent, providing notifications and personalised advertisements, I could see the benefit in that it could advise you there's a riot and to take a different route home or it could be a disaster and plaster porn ads up as you walk past if you look at that kind of thing or even simply because you've not got your spam filter activated on the phone linked e-mail account.

There's also the hacker issue, not just the tabloids but could you imagine the potential for harrassment, stalking and trolling if someone could rig up ads to give you a message repeatedly, an all points personalised attack on you?

Oh yeah and big brother and stuff.