eMagin Corp. has developed a wearable headset system that plugs into Apple Computer’s portable media device and displays video in front of one eye, using optical technology designed to give the picture a higher resolution and make it appear larger than on the iPod’s screen. Scheduled to debut in the first half of this year, the EyeBud is expected to retail for as much as $599–$200 more than the cost of a 60-gigabyte iPod. But eMagin’s executives are betting that the notion of a virtual big screen will win people over. With the proximity of the screen to the eye, and the magnifying effect of the company’s optical technology, the company says that using the headset is akin to watching a 105-inch display from 12 feet away.