Thanks for this Paul, got it installed, and got my $10, having a couple of issues though.
When I start the app, I put in my pin code, and the app loads and will let me view my payment cards (including the $10 prepaid Google card), however it displays "Unsupported Device" in a yellow bar at the top.
Also when I tried it at Gregg's nothing happened when I held it up to the reader, is the person at Gregg's supposed to press something on his till? I tried to explain what I was doing, but the clerk had as much brains as one of their cheese and onion sandwiches.
I am running AOKP on my Gnex with the MrMad Galaxy S3 theme pack. I scanned my Passport with NFC last night,so I know that's working OK.