At this point Toshiba's dualscreen Libretto W105 shouldn't need much of an introduction -- or at least after glancing at the picture above we figure it won't. It looks like a laptop straight out of the future. And it kind of is. It's the sort of clamshell gadget we've seen rendered and rendered for years, but that's never made it to market until now that is. In celebration of Toshiba's 25 years in the laptop business, the company's gotten bolder than ever, and it hasn't just created a gadget with two seven-inch capaci