Re: Win 7
Linux will not take off like that as people are using MS OS at work. Otherwise it'd be far more common for Linux to be used at home already
I think it's more a matter that every computer that normal "IT civilians" buy in a normal retail channel comes with an OS, and the cheaper ones come with Windows.
I have never met a non-IT person who has wiped the pre-installed OS from a brand-new computer and installed Linux on it. I'm sure they're out there, but they are a tiny minority. They just use what it came with.