Oh, that's totally excellent.
Hmm, now I'll have to think about the radio properties of the antenna..

'Cuz if we're going to dismantle a charlie card and put it in a skin, clearly the next thing we need is to skin a charlie card, an oyster card, and a clipper card and put all of them into the same skin, so we can get out of the business of having another flipping card per system.