What would you do for a split-keyboard laptop?

Every once in a while, some new idea comes around that revolutionizes technology as we know it. Think about the USB, the touchscreen, and other advancements that are now standard features.

Perhaps the next big thing are laptops that split their keyboards open. Why you anyone want to do that? Maybe if you keep a secondary screen down there, perhaps. Maybe even a touch sensitive screen? The keyboard can function normally when split in two, and who knows, you might even get used to it.