Let's overlook the rest of the shit you wrote and focus on these two:
IE 7 STILL isn't as good or stable as Firefox. Don't believe me? Go check Cnet. Sure, their reviews are consumer level crap, but that's who IE 7 is built for. Security wise, it's STILL fucked.
Vista? The OS that's years behind as far as schedule, and once released, will STILL be feature incomplete, STILL be insecure, and STILL trumped as far as useability by OSX 10.4, which by the time Vista will be released will be obsolete, thanks to OSX 10.5, aka Jaguar? It isn't even a legitimate step forward from XP anymore.
I hope you don't build your own computers or reformat your Windows system more than once for every copy of Windows of you buy, because Vista will only let you transfer your copy from one computer to another. This includes re-installs due to "major" hardware changes.
As for this Zune POS, no one knows exactly what the fuck it does, how the fuck it works, other than it uses yet ANOTHER microsoft spawned solution for online-content distribution, and it once again is overly complicated and potentially the weak link. As for Wifi song sharing, I could just as easiy just go "hey you have to hear this song" and offer up an earbud, as mentionned in most media covering this player. Besides, if you want to see how the Zune will probably pan out, go find the Toshiba Gigabeat player and see how well that sold. Don't know what I'm talking about? That's the fucking point. It failed, and the Zune is 99% of what the gigabeat was, and is built by Toshiba.
They better fucking get it right if they want a snowball's shot in hell of getting even a 10% market share.