A month ago, controversy was stirred up when Amateur Photographer pointed out some stringent and seemingly unenforceable restrictions included in the London 2012 Ticket Holder Agreement. That you couldn't post photos from the venues on Facebook etc, an assumption apparently later refuted. Now we're told that images to Facebook will be allowed, but that camera equipment over 30cm (12in) long will not be allowed, and that since there is no storage available for stuff like that, you'll loose it if confiscated. Read more here on PetaPixel.
Image courtesy of huitgalerie, CC BY-NC-ND 2.0