I don't get it, does it support Unix commands as well as traditional Windows line commands in the same tab? Is there a description or product specifications?
This is related to the underlying console/terminal system in Windows 10, which should be shell agnostic. The same infrastructure is used by PowerShell, the Windows command prompt, and WSL for instance - all are just different shells that use their own implementations of the console subsystem.
Hmm I was not asking what this is, I was asking what they do specifically now? where's the official announcement?
The official announcement is coming later today in Rajesh Jha's keynote. It seems the media embargo ended before the keynote happened ¯\_(ツ)_/¯