We've actually deployed quite a few tablets in the field to replace laptops that never worked very well for the task. Can't really use them while walking around.
For servers, desktops, thin clients, and laptops we have a number of different combinations of processors and operations systems including Windows 7 and 8, Ubuntu, OS X, debian, and VMWare ESX/ESXi. We also have a PBX, access points, routers, switches, modems, printers, gateways, Raspberry Pis, Arduinos utilizing various processors and OSes (though lots are linux variants). Then there are the company supplied and supported smartphones.
We have about 80 employees. We're not exactly a tech firm but close.
My point is the computing world is much bigger than Wintel even for companies that still rely on that combination. The non Wintel part of the technology world is growing. Intel would be stupid to pin its continued success on the future of Windows.