It's the whole not understanding the difference between mobile devices and older PCs, isn't it?
- As indeed other commenters have said. I am beginning to see that I could use a tablet for productivity but detest Apple and the Android ones still look too immature for my liking (although I use an Android phone very happily). So I would happily wait for for a W8 tablet in order to take documents to meetings and presentations more conveniently than on either a laptop (too cumbersome) or my smartphone (too small). Currently I can put them on my Kindle, but I don't find that ideal. However, the thought of Metro on my desktop, which I still need for raw horsepower in the realm of photo editing, videos and the like, fills me with horror. And while I like certain aspects of W8 such as the new Task Manager, why should otherwise attractive features such as syncing via a Microsoft account across various PCs be subject to such execrable software as IE?
So it's a possible W8 tablet for me, but keeping the desktop and laptops on W7, which I find to be an excellent OS.