Mainstream I think ends next year -- extended goes on until April' date=' 2017 (it needs to die quicker!).
Yeah, Win 7 is currently my favorite MS OS. I think given it has support through 2020, business will get it and sit on it like they did with XP.
Windows 7 is my favorite as well, i find it easier to use, and more convienient. I used to have vista on a laptop, but i didnt like it I thought it had a lot of issues. So when i got my new desktop a few years ago I went to windows 7. Now I think i'll stick with that, not to eager to go to windows 8