Microsoft’s decision to enter the laptop market hasn’t exactly been popular with its OEM partners, especially Lenovo, but rather than sitting around and complaining about the new Surface Book, Lenovo is going on the offensive with some new 2-in-1 laptops of its own. The first of these laptops is the Yoga 900, which is the thinnest addition to the Yoga line yet, and it comes with the kind of high-performance hardware that Lenovo’s going to need if it wants to compete with the high-end Surface Book, although it lacks the dedicated graphics card and detachable screen that the Surface has, which helps bring the price down to more affordable levels.