Keep in mind this is the company that chose the name XBOX ONE for the third system in the series. I assume it has something to do with wanting to distance themselves a bit from the number 8.
I'm looking forward to it. I'll definitely check out the preview once it's out - tomorrow, I think.
I use windows 8 mostly on Tablets where the touch interface works great.
I'm curious to see what they've kept and what they haven't.
Meanwhile Apple have kindly stuck at OS X for seemingly centuries just to let MS catch-up :-D
And it looks like Microsoft are planning to do the same. It'll be Windows 10 from here on out with whatever updates come along rather than further versions.