Windows 7 - Oh why don't they just give up...
Also on gizmodo: Windows 7 Walkthrough
Oh why don't they just give up? I doubt they'll ever be able to fix the mess that is Windows. They aren't brave enough to make radical changes where they are needed...
They added some real improvements it seems, but mostly they're just trying to fix stuff that was obviously broken in previous versions (they way you select wireless networks, reducing the amount of popup-warnings, etc.) or adding things that Mac OS has had for many many years (the taskbar-stuff - try right-clicking an icon of a running application in the dock..., again the wireless network selection, more overview in the control panel, etc.).
I don't see myself switching back to Windows in the next couple hundred years...