I find widgets on my mac great, i can look at my gmail account, monitor memory usage, cpu usage etc, read the mactips.com blog and read the daily dilbert comic.
You can do similar things with vista...

on my mac f3 doesn't do anything and f9 + f10 +f11 are devoted

The improved home networking sounds good (if it works) because its such a pain at the moment

using f9, f10 and f11 and can quickly switch through windows and have access to the desktop, i really miss it on windows

So what is actually new in windows 7

Ill give you blueray but thats not really a software thing, more a hardware thing (so a mac issue as opposed to a good windows thing)

The last one is quite useless and insignificant but there is a...

Well now that you mention it most cars do look similar :p

MS lost me with Vista and im glad i switched

(correct me if im wrong but..) Windows 7 doesnt look like it has anything that mac osx...