Patent and IP problems oh my. For a quick refresher, “Square” is an innovative new piece of hardware that attaches itself to any iPhone/iPod Touch and instantly transforms it into a mobile POS station. Cool, right? Definitely. But the startup is far from the finish line. A patent problem is looming that could derail Square’s launch and ultimately cost them big time. The founders of Square consisted of Twitter’s Jack Dorsey and Jim McKelvey. The...