The ARM partnership between Microsoft and Qualcomm is notable as it expands Windows 10's existing support of x86 chips from Intel and AMD. It also looks set to overcome the constraints of Microsoft's previous ARM effort with Windows RT.
The Snapdragon 835 PCs will run full Windows 10 desktop, which has been compiled natively for Qualcomm's SoCs. They'll also run Win32 apps via an emulator, as well as universal Windows apps. Microsoft billed the forthcoming devices as a "truly mobile, power-efficient, always-connected cellular PC".