Sometimes it's hard to choose between a laptop and a tablet. You might want to draw with a stylus, and tap the screen in a game, perhaps. Or you may need a keyboard so you can type a long document. Two-in-one machines gives you the best of both worlds, with a keyboard that folds back through 180 degrees to sit on the back of the screen, creating a thick tablet. In some cases, the display part detaches to be used in tablet mode.

Microsoft stripped the numbers from its new Surface Pro hybrid, and we talk the future of fashion, as well as why the perfect prosthetic hand is still many years way. Meanwhile, Google's AI-powered Go player beat the world's best human Go master. There are, however, still two matches left. The refreshed Surface Pen also adds tilt sensitivity.Microsoft made the Surface Pro both lighter and quieter Microsoft has left the Surface Pro line untouched since late 2015, but the company finally gave it a subtle refresh today. Announced at an event in Shanghai yesterday, the new Surface Pro has updated 7th-gen Intel Core processors and enhanced 12.3-inch PixelSense display, plus an LTE option due later this year. Microsoft calls this "the lightest, the best sounding, the fastest and the quietest Surface Pro ever," and the company was keen to stress that its machine is 1.7 times faster than the iPad Pro.

Samsung's Windows-based Galaxy Books, unveiled Sunday at Mobile World Congress, point to a critical weakness in the company's multiple-OS strategy. The company uses Windows 10 in PCs, Android in smartphones, and Tizen across wearables and smart appliances. This has led to a lack of coherence among Samsung devices, in contrast to the near-seamless product integration that has fueled Apple's success as the world's most valued company. The specific issues with the Galaxy Books are relatively small, but are nevertheless symptoms of the larger problem: walls among devices and an inconsistent user experience across the company's product line. The lack of a broad app ecosystem for Samsung devices has not helped. Samsung has taken a siloed approach to product development, said Werner Goertz, lead Samsung analyst at Gartner.