Good work, Canton!
I love the design and am definitely going to start using these.
I don't see the point in stressing about the 'hack'. Keep your wallet physically secured and you won't have to worry about it.
I agree completely, but I am very much enjoying the friendly battle with Niko.
Is there any way you could post the base design without keys and QR codes so that I could stick in a vanity address just for fun? Or maybe you could find a way to incorporate vanitygen, though that sounds like it might be a bit difficult. It might also be nice if other address formats could be used. I would love to use this for Litecoins, too.