When a gadget company sells its products for big bucks, it has every reason to refine its designs on an ongoing basis, making them ever more tempting to paying customers. But if the gizmo in question ...

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 ...