On a different forum for the Mk5 I remember seeing posts about retro fitting the reversing camera from the Mk6 to the Mk5.
There were lots of cables and things involved for this but I suspect for the Mk7 it would be a lot simpler, perhaps even as straight forward as buying a replacement rear badge mechanism with camera and re-coding by VAG COM?
Given the fact that the option on the price list wasn't expensive it has to be pretty close to plug and play.
FYI here's a guide on the other forum
http://www.mk5golfgti.co.uk/forum/index.php/topic,10027.0.htmlAnybody got inside knowledge on this or planning to give it a go?
After a while these things start appearing on ebay so I guess those of us without camera - myself included - can do this little mod a few months down the line...