In short, "the PowerShell team will support and contribute to the OpenSSH community." Yes, that's right. Microsoft will be contributing to the OpenSSH under its BSD-style open-source license.

The Microsoft PowerShell team will contribute to the OpenSSH community to create a way to use Windows PowerShell with SSH, for securely connecting to and managing computers running Windows and Linux.

An upcoming version of Windows PowerShell will let users manage Windows and Linux computers through Secure Shell protocol and Shell session (better known as SSH), thanks to some new functionality ...