Live Share / Teletype

Amanda Silver introduces "Visual Studio Live Share", which:

enables developers using Visual Studio 2017 or Visual Studio Code to collaborate in real-time!

This goes a bit deeper than just a multiple-cursors thing. Both people get all the same fancy VS code UI stuff like IntelliSense and Peek.

GitHub's Atom editor also has Teletype, which:

lets developers share their workspace with team members and collaborate on code in real time.

Atom has the concept of a host, in which:

As the host moves between files, collaborators follow along with the active tab automatically.

I'd be remiss not to mention CodePen has Collab Mode and Professor Mode, which require zero setup. Shoot someone a URL and go!

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