Switching from Mac OSX to Windows for me had similar complaints, Finder vs. Explorer, different hot keys, the lack of familiar UI elements like expose, and the differences in syntax between Terminal and command prompt. But I guess that's part of any OS switch and for me I still enjoy using MacOSX and I will probably build a hackintosh in the near future just to get the macosx experience back (unless Linux gets more marketshare and more applications). Different strokes for different folks I guess.
I do have a few questions, if Linus is indeed reading this, did you notice Macosx's memory compression? If so did it have a noticeable affect on the daily usage experience? You could also switch between spaces via hot keys, would you ditch the magic mouse if this was used instead? Also what would convince you to switch away from Windows to another (not necessarily macosx) OS?
Cheers - Hykloria