Can't see any reason why it wouldn't stick on the inside to be honest. Not sure I really want my camcorder stuck to the outside of the car driving round London though...one set of traffic lights at red and some little chav will have it away!
I think i'm going to go for this one mate, have a look on their ebay shop as they have a large variety and feedback seems trustworthy enough!! I just need to sort my paypal account out now!