According to IntoMobile, Verizon is about to introduce paperless receipts at their retails stores. This seems like a great idea for existing customers though I’d love to see this get some NFC integration … tap to pay have it billed via ISIS (the VZ invested consortium) and show up in your docs and receipts.
I don’t even use VZ, but this seems like a very natural fit that could offer great customer benefit. Isis has yet to announce what phones will be supported though Verizon does currently carry the payments-capable Galaxy Nexus. I’m not sure you’d really even need the secure element aspect of NFC payments (opening to potentially more NFC devices) though it would benefit the Isis bit more if they focused on that for newer phones and upgrades.