But all those criticisms of prior iterations were valid. My dad tried to use a surface 2 as his main machine. His big complaints? Screen is too small to use as a laptop and the kickstand + keyboard cover suck for using on your lap or in an airplane seat.<p>SP Book isn&#x27;t so much an evolution of SP1 as it is an abandoning of most of SP1&#x27;s key design decisions: laptop-size rather than tablet-size, full-keyboard rather than keyboard-cover, and clearly designed to be used foremost with keyboard and trackpad attached (most of the battery is in the keyboard base) rather than with touch.<p>It&#x27;s slowly worked its way towards being a MacBook with a stylus and flexible hinge, instead of being an iPad with full-powered CPU and keyboard cover. And that&#x27;s probably what it should have been all along.