1. MinWin (microkernel) and component arch on x86-64 only more like gnu/linux - run the full kernel with a console in minimal MinWin + cmd (or poweshell) so u need command expertise, shell scripting knowledge etc.. advantages: less mem.consumption by OS itself, more available 4 apps ability to add components, ie if u cant live without GUI add the component "Windows explorer" for Multimedia add components like Dx, WMP etc for browsing add component IE (no other way if they dont make console webbrowser like lynx) 2.ability to select componest b4 install (as u said and requisite for wish 1) 3.complete independence b/w IE & WE 4. Again independent WOW64, ie if u dont plan to use 32bit apps donot install it,maybe some APIs that convert x86 procedures to execute on x86-64 . 5. Can we expect so called WinFS atleast in win 7.? 6. (Hope not) some wacky idea for wga (give a magnetic card reader and a card along with the OS Disc, if it is put and authenticated and enter u PIN then u go otherwise no go(like ATM)), (am just kidding) 7.no server/client os discrimination (install server appliance and work as server, remove it and work as workstation) and counting will post more when get some spark