THE VISION: Google is developing futuristic, Internet-connected glasses. You can use them to see directions to your destination appear before your eyes. You can talk to friends over video chat, take a photo or even buy things.
VERY EARLY: Google gave a glimpse of its prototype "Project Glass" eyewear this week. Though the company has been working on the project for a few years, the technology is still being developed.
BE CAREFUL: The technology raises questions about public safety, privacy and practicality — not to mention fashion sensibility.