Microsoft code in the Kernel tree?

Microsoft wants Linux to run under Hyper-V, but does the Linux community want that?

you can look at it that way (and many people do), or you can look at it from the point of view that if a company has a Hyper-V server with lots of virtual machines, making off-the-shelf linux distros be unable to run on that box is more likely to mean that linux based products don't get used by that company than it is to mean that the company goes out and buys vmware (another proprietary virtual server) to run a linux-based tool on.

from that second point of view, this allows us a foot in the door.