Transports Metropolitans de Barcelona and NFC

Last Friday, while I was going to watch a cinema movie to Gràcia, I was shocked after what I watch underground. As can be seen in the following pictures, in Universitat Underground station there is an access barrier that is activated with NFC... this has been a big surprise because I have not found any official announcement in the net, but they have installed this access barrier and also a "recharge point" near the ticketing machines...






It does not seem supported by any mobile operator, as the logos and information there was unbranded. I guess they are using Nokia 6131 NFC enabled phones that does not use the SIM card for storing the sensitive data but an "embedded chip" that is inside the handset and managed over-the-air... will continue investigating.