The photo to your left is of an RFID tag contained on a skirt purchased at Old navy.

Up to now I wasn't aware that individually-tagged items of clothing were being sold at mainstream retail outlets in the U.S. like Old Navy. Oh sure, we've heard about RFID used in pilot programs and in exclusive high-end outlets like Prada. But Old Navy?

The photo is courtesy of Meghan Trainor, an artist who has created art works using RFID. If you go to her site you will see some creative uses involving RFID, including using RFID to activate a sculpture and to create an unusual audio work. (Be sure to launch the movies on her site.) She works in an interesting intersection between art and technology.

You can also find photos relating to her RFID projects over at her place on Flickr, which is where I found the photo of the skirt.

Thanks Meghan!

UPDATE August 1: Michael writes in shedding some light on this tag: "I believe the tag Meghan Trainor found (and you reported) at Old Navy is *not* an RFID tag. I think it's an RF EAS tag. This tag stores no data other then a state (on/off) used for security (at the exit gates).

If I had to guess I think it's this:
http://www.checkpointsystems.com/default.aspx?page=productsdisposabletags."