If size and weight aren't nearly as important as turning heads at your local coffee shop, then why bother with today's banal hardware if you've got a perfectly good Macintosh Portable lying around? One nostalgic modder with a disregard for luggability has updated Apple's very first laptop to run OS X, creating what he calls "a great café computer." Obviously, the software isn't all that's changed, as behind the white plastic hides the internals of a