The Carl Zeiss Cinemizer OLED has been a long time in the making -- we first heard about the video glasses at Macworld in 2008 -- but the company has yet to push the head-mounted display past the prototype phase. We stumbled upon Zeiss' booth here at CeBIT, where we found a version of the glasses that look mighty similar to the mock-up we saw in marketing materials from 2010, but are now equipped with a pair of head-tracking modules to expand the yet-to-be released marvel's practicality. With head-tracking now o
