https://www.kernel.org/pub/software/scm/git/docs/gitattribut...
Otherwise, as another commenter mentioned, there is always Markdown. Combined with MathJax[2] and custom style sheets you see many of the same benefits with greatly increased simplicity. A great desktop Markdown editor (if people don't like web based ones) is Mou[3].
Lastly - the advantage to using Markdown is that if you have to work with someone who does use TeX - something like pandoc[4] can be used to convert between formats fairly nicely.
One thing I think is missing is a "Make" like program to dictate how to combine multiple Markdown or TeX documents into a single document, which folders to scan for references etc. I've seen a couple of home grown solutions - but nothing that really fit the bill.
[1]: https://www.texpadapp.com/
[3]: http://mouapp.com/
This has caught on with almost everyone (technically minded I should add) who has been exposed to the approach, so I wouldn't be surprised if this started to catch on in the wider field of Scientific publishing and Conference calls.
I'm on a Debate team, and this would be an awesome tool to collaborate on cases. I would use Github for it, but my team is not too tech savvy.
Oh, and is this going to be open source? I'd love to help out with this project.
3D Visualization of popular formats: https://github.com/danielribeiro/three-hub
Syntax Highlight on Diffs: https://github.com/danielribeiro/github-diff-highlight-exten...
Would be very curious to hear from others who've used the actual realtime api, however.
For small groups working on a short research paper, Google Docs is great. But could you imagine a book being written with Google Docs, especially with multiple people? That'd be completely unmanageable.
I love the HoTT book [1], because it's a great example of using GitHub to write a book with multiple contributors, and really illustrates the shortcomings with other technology [2].