No AR cards in Japanese Vita's though ... However cards aren't in any way that complex like for example already mentioned EoJ (actually - they're pretty ugly and I was expecting a little bit more from Sony than that) so it's not a problem to print out your cards - you don;t even need to scan then, simply reproduce them manually in Paint and print or I bet it would even work by painting the black squares on paper.
Interesting concept. But I don't like how you are tied to one location, or that you have to carry around these cards as markers for your game. Vuzix is coming out with a similar Augmented reality glasses in about a year or so.
I've made the cards myself (can provide templates if anyone is interested) but the test results with Mina Golf 6 and AR Combat are not conclusive as it works but it also works just fine with my spotted duvet cover ... But definitely there is no need for "original" Sony cards - it just reads the black and white square patterns on the cards, the same way EoJ did.