While Palm Beach, Florida-based Applied Digital touts the device as an advance in medical monitoring and personal security, it is raising the eyebrows of civil libertarians and others wary of identification that cannot be turned off. "What's to stop other people from using it?" Electronic Privacy Information Center legislative counsel Chris Hoofnagle asked in an interview with NewsFactor Network. "There's a reason we keep our identities to ourselves. We don't walk around wearing name tags."

Seriously, it's just a matter of time before the technology is available to quickly identify anyone who walks through the door, nametag or not. What then? Make sure to post anonymously!