Depending on how savvy you re, you could always do what I want - mount it into the rear badge and have the badge tilt to expose the camera: clicky
OK... I've decided to have a go at this myself. I've ordered up a new boot handle from eBay for 99p + postage (bargain as VW wanted £75!)... and when it arrives I'm going to try cutting into it and fitting the camera. Once I see how much I need the handle to open I'll order a 12V solenoid which will pull the handle when it gets a 12V signal from the reverse lamp. I'll have it pull the top half with a string or something rather than using an actuator to push it out... as this is cheaper and easier. It means I can put the solenoid anywhere inside the boot lid and have the string / wire connected - rather than actually fitting the thing in the boot handle. Hopefully excluding the camera, the bits to do this will cost me about £10 - but we'll see how it goes.
The ONLY thing I'm unsure of is that when making the handle tilt - it will open the boot. This normally isn't a problem as when I drive my doors/boot auto lock anyway. But when I set off in the morning to work, I reverse out of my space. Unless I press the lock button on the driver door, I guess my boot will open as soon as I put the car in reverse?! I need to find a way round this... perhaps putting a switch on the inside of the VW badge too which operates the boot instead of tilting the badge?
Hopefully my boot handle will arrive tomorrow and I can start fiddling!