I was in Sky City yesterday and I was quite impressed with their car parking system, every space is covered by a camera, if the computer sees the space is empty a green light is lit .. makes it a doodle finding a space now. Then because they are cameras they have number plate reading going on so you can find your car by typing the number plate into the computer screen.
I'm wondering if the cameras are recording a few frames a second all the time as well for catching car thieves .. or to see if you left the kids in there :-)
The nerd in me liked it ... now over to the conspiracy theorists to point out what they are REALLY doing ;-)