Apple has added to its legacy of zany patents
a head-mounted display with head-tracking technology intended to reduce viewer fatigue and disorientation (and induce nausea, if we're lucky) by simulating a theater or other viewing environment. The wearer of the device can pick a seat in the fake theater and then manipulate the image, zoom in and out, and look around thanks to an accelerometer and gyroscope built into the goggles. Few of these patents make it to market, but if you're eager to throw social acceptability out the window, there are already iPod and iPhone-compatible head-mounted displays
on the market -- you'll just have to do without the positioning gimmick until Apple is crazy enough to actually sell this thing.