At first glance, the stats from free text messaging startup GOGII and its textPlus application sound like they’re too big by an order of magnitude: 3.7 billion messages sent since June 2009. 8.5 million downloads. 23 million phone numbers in the network. But they’re real, and they’re a big business. Today the company is launching two new features that make the textPlus experience even richer, with support for sending images and a nifty