Google's love affair with NFC continues to blossom, and QR codes are starting to feel like a neglected stepchild. After a successful trial run in Portland, the once-upon-a-search company is expanding its NFC check-in program to four new cities, slapping RFID "Recommended on Google" stickers on windows in Las Vegas; Madison, Wisconsin; Charlotte, North Carolina; and Austin, Texas. The company wants to be the best in the location-based service market, and NFC is its crane kick. While Foursquare and Facebook users are forced to do silly things like track down the right business in an endless list of nearby results or try and focus their cellphone's camera on a dimly lit QR code, you could simply be swiping over a sticker, scoring discounts and moving on. Provided, of course, you happen to have one of the few NFC-equipped phones on the market (such as the Nexus S), live in one of Google's five testbed cities and really want your friends to know you hit Planet Wings for lunch -- again. Full PR after the break.