Oh lol. Do they really have to copy everything from KDE? But oh well, Microsoft never did anything creative, the whole interface was copied from macOS and later from KDE/Gnome. Also, ditching HAL was weird. stability gains are pretty much non-existent (I couldn't play Fallout 3 on Win7 beta, it just started freezing and giving BSODs after a few minutes), while the performance hit was pretty big (not to mention soundcard issues, network card issues and so on). Well, XP started being useable after SP2, Vista is still worthless, so W7 should start being even remotely good somewhere around 2013, after the second service pack.