How to transfer files between Galaxy S3 and HTC one x using NFC
As far as I know, you can't transfer files over Android beam, just URLs/locations etc. This is because Android Beam doesn't use Bluetooth or WiFi Direct in addition to the NFC transfer, which means that an average photo would take 30+ seconds to beam. In Android 4.1+ (Jelly Bean) you can transfer files with NFC+BT, and S Beam uses NFC+WiFi Direct.