RFID Technology

I read a recent article from September 16th on a European clothing manufacturer and retailer that is using RFID technology to improve it's business processes, (specifically it's inventory management) and improving its inventory turnover ratio and gross profit. I found this article interesting because, I have been hearing more and more about different uses of RFID technology and they seem to be growing in popularity, not only in the the U.S. but, in other countries as this article shows as well. For those of us who haven't heard RFID stands for Radio Frequency Identification and is essentially a system used for wireless tracking using radio waves. You can learn more by clicking here. Some of the general suggested uses of this technology online are the tracking of goods, persons, or animals, toll collection and wireless payment, machine readable travel documents, tracking logistics, and use with sports events.
There seems to be numerous uses and when thinking inventively and it seems popular with business planning for the future so my questions to you are these:

1. What innovative or creative use of RFID technology can you come up with?

2. What direction can you see this being used in business settings in the future?

3. Do you think it will be a sustainable technology of the future and why? If not how long do you think a trend toward using this technology will last?

Feel free to bring up other questions or point on the topic that I may have missed or haven't thought of also. I'm open to an engaging conversation on this topic.
Thanks!