Lenovo IdeaPad Yoga

Why do you need an Ultrabook when you could have the flip-and-fold Windows 8 tablet/laptop that is the clever Lenovo IdeaPad Yoga?

It's effectively four devices in one. You can use it as a standard 13.3-inch notebook or as a slate-style tablet. Flip the keyboard backwards and the screen stands up like a small monitor. Open it out in a triangle shape to use it in 'tent' mode.

As our Dan Grabham points out: "It's like Microsoft's vision for the Tablet PC from 2002. Only good." This sort of flexible design could give Windows 8 devices a real edge over their iOS and Android rivals.