The next big thing: Tiny screens, way up close - The Boston Globe: "The glasses, made by MicroOptical Corp. of Westwood, enlarged the image from Auerbach's video iPod, making it seem as though he were looking at a 25-inch screen from about 6 feet away."
I think this is one of the next big things. The Globe article annoyingly doesn't include pictures included in the paper version, but check out this example of an eyewear display that your brain sees as a 42" display 11 feet away. The ''Myvu Personal Media Viewer" pictured in the dead-tree version of the article looked a bit nicer, and cost $249 (rather than $549 for the Icuiti device linked above).
Yeah, we are Borg etc., but this type of display just makes more sense, for long flights, crowded areas, better battery life, etc.