While a number of Microsoft's OEM partners, now including Toshiba, have inexpensive 8-inch Windows 8 tablets on the market, they require the Windows 8 Desktop to run Microsoft's core Office apps. That doesn't make for a great experience on these small-screen devices.
I was really hoping to see if the rumored Surface Mini could replace the pen/paper I still use to take most of my notes. Yes, I know I could use a Surface Pro 2 or 3 with a pen to take notes. But so far, those form factors don't appeal to me the way something that actually is more the size of my paper notebooks might. If a Surface Mini was a true notetaking-optimized device, I wouldn't care about trying to use it with a keyboard or a mouse.