This article on eWeek examines the latest developments in wearable computers and discusses a pioneer in the field Steve Mann’s computer:

‘Mann’s computer incorporates…”eye-tapping” which is laser-based technology that…allows the eye to function simultaneously as if it were a display and a camera.’

Mann is quoted as saying that Windows is not the operating system for a wearable computer. That his wearable computer is based on GNU Linux. This should separate the true geek practitioner from the posers. My lab coat already holds about 4 meg of data: Palmpilot, Sanford and Pharmacopeia. Think about a 20 gigabyte lab coat.