Google Glass, the hands-free computer that competes for space with your spectacles, has been in testing mode since April 2012. Google is mum on exactly when the hotly anticipated device will be released: Some 10,000 people currently are test-driving the technology as part of the Glass Explorer program. But tech watchers are betting on an early 2014 launch.Of course, it may be several years before Glass becomes as ubiquitous as the iPhone. Still, retailers would be smart to start considering the technology’s many ramifications, both in-store and online. The days of consumers hunching over smartphones to text and take photos while shopping may be coming to an end. What Is Google Glass?Google Glass is a minicomputer that features a camera, eye-line display screen, touch pad, battery, and microphone built into frames that resemble lens-less eyeglasses. The capabilities of the Explorer