I think thats at the heart of the issue. I haven't kept up with NFC news, but I would assume the difference between Wallet and Isis is about the same difference between Visa and Mastercard. Shouldn't matter which one you use, so long as you have NFC. If that is true, then VZW shoudn't have any say, if you like Isis, you will install and use Isis. If you prefer Google Wallet, then you install and use that.