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 ...

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.

T oday, I’m talking with Willem Avé, who’s head of product at Square. You know Square — it was started by billionaire Jack Dorsey, of Twitter fame, more than 15 years ago, and it got big on the back ...