Eric Raymond thinks Microsoft is ready to swap out the Windows kernel for Linux
neowin.net
neowin.net
That phrase would've meant entirely different things 20 or 10 years ago. In many ways m$ held the land in crushing subjugation, raping the cattle and eating the serfs until there's little left but scorched earth and crunchy remnants.
Ceding those leftovers to the few remaining holdouts and weird people who like their beef that way is perhaps not the crushing defeat we hoped to see m$ suffer.
However, this will do.
It's not going to go away for a very very very long time. All the reimplementation of native applications into slower metro versions (even "simple" applications like Paint, Snipping tool, Calculator) is probably where they're intending to go with a lot of utilities etc. but there is still so much native stuff, eg. MMC + the myriad snap-ins, COM configuration, event manager, Windows explorer itself...