We just had a bomb dropped on us by an anonymous tipster, courtesy of a leaked version of the Google Wallet app - and it was hiding some pretty amazing secrets. Let's cut to the chase: physical Google Wallet card. That's happening, and you'll be able to get one, probably soon.
The physical Google Wallet card will work just like a regular credit card. Whatever your currently selected default card on the Wallet app is, the Wallet card will charge to.