TiVo has filed a patent application for a ‘ Multimedia mobile personalization system’ using RFID. New Scientist picked up on the patent and reported it. I was alerted by the coverage in ZatzNotFunny
The idea is that a user would have an RFID tag that would be picked up by the remote and/or DVR, so each user could have a personalized profile – recordings, play lists, etc – which would be automatically selected by their RFID tag.