>> Unless we adopt the WIDE practice where the tag is re-used from >> meeting to meeting. It's an elegant solution, and not that different >> from the reason I own a complete set of Suica, Pasmo, ICOCA, PASPY and >> London Oyster cards. > > That is where I was going with that remark, yes. :) 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