I signed up on a whim, and after verifying my account, they actually sent me a free CC swipe reader for the iPhone. It's the about size of a postage stamp but about 1/4" thick, and has a headphone ...

LAS VEGAS — Square sells its own cash register replacement for the iPad, but the mobile payments company has yet to debut any iPhone-compatible accessories for its card reader. Well, until now.

Square, the payments company that makes it easy for small businesses to accept credit card payments wherever you go, is finally catching up with the times today by updating its tiny card reader.

We reported on the dongle-based audio signal credit card reader for iPhone and other connected mobile devices a short while ago, which has been pioneered by Twitter creator Jack Dorsey. Square uses a ...