To hear most mobile companies tell it these days, you'd think that NFC (or near field communications) is only for mobile payments. That's not the case at all, of course, and a group of researchers at Stanford's MobiSocial lab have now thrown a few new ideas of their own onto the table after getting a pair of Nexus S phones to play with. After first making a few tweaks to overcome some of Gingerbread's limitations -- it only uses NFC for reading tags -- they were able to develop a few social-minded applications that make use of the P2P functionality possible with NFC. That includes one example that lets you share pho
