Loop Puts Credit Cards on a Fob and Smartphone App
"The Loop AppCessory would appear to be a very inexpensive add-on device that plugs into the headphone jack much like the Square credit card meter. But rather than enabling the iPhone users to accept credit cards it would allow their iPhones to ...
'Loop Fob' Allows Swipeless Credit Card Purchases at Any Traditional Swipe ...
Stop Carrying Credit Cards With This Fob That Can Fake Them
Loop launches secure mobile wallet with credit card fobs