Tablet PC screen that folds like book or as dual-screen laptop is incredible piece of technology but not ready for mass market

Lenovo’s ThinkPad X1 Fold is an entirely new form – a tablet PC that closes like a book with a foldable screen. It may just be the future of the computer.

The £2,500-plus X1 Fold joins a rarefied group of cutting edge folding-screen devices that include the reinvention of the flip phone and a mobile tablet that folds in half to fit in your pocket.