You've most likely heard plenty about NFC-capable smartphones, but little in the way of actual real-world uses for the chip. Well, MasterCard's looking to change all of that, and throw in a few innovations of its own courtesy of its in-house R&D labs and Google. Shown off at an event today, the company demoed the Google Wallet application we first learned about back in May -- which is gearing up for an official launch sometime "soon." Running on Sprint's Nexus S 4G -- with a planned expansion to multiple devices -- users can connect a
