This is an interesting “emergent usage” of an app. Westfield have added a function to find your car in their carparks – by scanning the CCTV images, but the police could use it to find your car if stolen.

via SMH

I thought it’d be great to integrate the city’s CCTV network with Facebook face-recognition and get automatic updates on nearby friends.

“Facebook Alert: Hi, you have 3 ex-girlfriends and 1 mother in-law within 300 metres, would you like to go offline now?”