That’s Windows 7, not a mini-Linux OS like Splashtop. It’s also from a powered-off state, not sleep mode. Pretty impressive. And much of that speed comes from turning on a laptop’s devices (hard disk, ports, etc.) in just one second.
Much to my dismay, I’ll be spending a lot of time in airports this weekend — so I’ve dug up some products that might make life a little easier on the layover.