Boards
City Bins tracking your movements
http://www.bbc.co.uk/news/technology-23665490
Those bins are completely crazy, anyway. They're for newspapers only and have screens on the side telling you things you already knew because you just saw it on your smartphone. Odd.
Interesting 'thin end of the wedge' in terms of tracking people, though. Presumably all mobile phone networks have a log of the MAC address for each phone they sold?