Maybe the next version of Windows (or whatever it's to be called) will see Microsoft exit out of the OS business. I've often thought Microsoft should play the script Apple played: use a Linux kernel, wrap the Windows APIs around that kernel, create a Windows desktop environment. Most of your existing apps from the past 30 years would still run and you no longer have to maintain a kernel and drivers. Heck, you might even offer a "bring your own kernel" offering where the user can pick which distro they want and run your Windows desktop environment when desired.
I'd love to see the numbers on the net profit Microsoft is making from Windows and how much pull-in business Windows is still generating for them.