He sure does look like a cammie - imagine a colour in between ginger and white, and you've got cameo! Some cameo kitties can also be dark cameo, which is like a more browny, caramel ginger.

I'm not sure where I learnt about the color - probably in one of my cat books, but is a beautiful and fairly rare colour! You will have no trouble finding little Newton a furrever home (if you don't adopt him yourself!) as it is very popular too