The Microsoft Windows Vista operating system

I saw a message board post that DCI Reporter (Wizards of the Coast’s tournament pairings and management software) doesn’t work on Windows Vista (which is rather impressive in and of itself, I think, especially as it’s a .NET application), and it got me to thinking: I kind of need to keep on reminding myself that Windows Vista ia actually, like, out and released. I just did some brief research and apparently it has been out for several months now. I’m not sure I’ve actually seen a copy of it running on a computer anywhere. Is Vista just unusually not being picked up by people, or is my circle of influence just unusual?