Also here is the message from Marcelo.
You can find some researches using RFID.
/Hiro
>Date: Wed, 31 Jan 2007 00:46:49 -0300
>From: Marcelo Milrad <marcelo...@msi.vxu.se>
>Subject: Mobile Interaction with the Real World
>
>Hi all,
>
>Please have a look a the following URL:
>
>http://www.hcilab.org/events/mirw2006/
>
>It contains a number of very interesting papers
>and materials that were presented last year
>at a HCI conference in Finland. You may find
>some of the contributions very relevant for
>your particular field of research. Enjoy them!
>
>Regards.
>/Marcelo