Google seems determined to press forward with Google Glass technology, filinga patent for a Google Glass wristwatch. As pointed out by CNET, the timepiece includes a camera and a touch screen that, once flipped up, acts as a secondary display. In the patent, Google refers to the device as a ‘smart-watch. Whether or not a Google Glass wristwatch ever appears on the marketplace — just because a tech titan patents a particular invention doesn’t mean it’s bound for store shelves anytime soon — the appearance of augmented-reality accessories brings up a handful of interesting issues for everyone from app developers to those tasked with handling massive amounts of corporate data.For app developers, augmented-reality devices raise the prospect of broader ecosystems and spiraling complexity. It’s one thing to build an app for smartphones and tablets — but what if that app also needs to handle streams of data ported from a pair of tricked-out sunglasses or a wristwatch, or send information in a concise and timely way to a tiny screen an inch in front of someone’s left eye?