There is little mention of the technology used, but if Facebook is really interested in the kind of openness they claim when talking about Internet.org etc., th

There is little mention of the technology used, but if Facebook is really interested in the kind of openness they claim when talking about Internet.org etc., they should adopt an open standard. The Physical Web project (http://google.github.io/physical-web/ http://google.github.io/physical-web/) aims to set up such a standard based on existing technologies (Bluetooth, mDNS etc.), but it's being held back by lack of browser support. If Facebook were to adopt this, it would be a huge boost.