On Aug 8, 2013, at 1:47 PM, Phillip Hallam-Baker <hallam@xxxxxxxxx> wrote: > Why bother with RFID tags, or badges? Simply register with your cell phone. We can then scan your Wi-Fi and Blue-Tooth signals when you approach the mic. > > -- Christian Huitema > > 'Simply' > > What is this simple technology of which you speak? I find that the best we can do with electronic systems is about 99% and that takes a huge amount of effort. I have a whole drawerful of bluetooth headsets and thats where they will stay because none of them works well enough to be useful. I am fairly sure Christian was being ironic.