it runs the same as vista. its vista. it just has a few different features and a new taskbar.
though i dont understand how they did something right 'for once' yet you seem to like XP which, believe it or not was ALSO made by microsoft! WOWZERS eh?
They didn't just re-release Vista. It sounds like they plugged a ton of memory leaks and made the whole thing run a lot more efficiently. I doubt very highly that any of the Vista releases would play nice with a netbook.
Aesthetically, the interface is pretty much the same as Vista but the general consensus seems to be that Aero Glass was the ONLY thing that was good about Vista anyways, so it makes sense to port over that feature.