Microsoft has taken things up another notch with its Surface line. Today, the tech giant launched its first-ever laptop and it doubles as the thinnest Windows tablet ever made, measuring only 7.7mm thick. The new product sports a 13.5-inch PixelSense screen with 6 million pixels resulting in a 267 PPI that has been made as thin as possible with an optical bonded display. It also features a machined magnesium exterior, trackpad made of glass and a backlit keyboard via a “dynamic fulcrum” – basically a hinge that also allows the display to be detached and used as a tablet – in place of a laptop – along with the Surface Pen stylus. Inside are sixth-generation Intel Core i5 and i7 processors and an Nvidia GeForce GPU with GDDR5 memory, as well as a duo of USB 3.0 ports and an SD card slot. The Surface Book will be available to pre-order from tomorrow, October 7 starting at $1,499 USD before launching October 26.