They sure would...

Lots of supermarkets already have customers using keychain Tags to get discounts off store specials so more cash back should entice consumers even more!

Interesting little gadget and idea...

So... many basic things just waiting to be Twisted into Future technology and Creative business ideas.

A new USB scanner lets you 'virtually' clip n' save...
http://tinyurl.com/khgf3

http://www.scanaps.com/process.htm

Phil