Just noticed this tool for editing notebooks using plain text (to avoid the json blob) and would like to know if this is a good idea?!
Jupytext is by Marc Wouts for working with Jupyter Notebooks interactively from any IDE using Markdown (.md) or Python (.py) code with support for R and Julia too:
This would solve some of the issues mentioned in the presentation from Joel Grus.
The extension works pretty smooth so far!