I found this short talk about the Jupyter project on reddit: video <https://www.youtube.com/watch?v=JDrhn0-r9Eg&t=4m10s>, slide deck <https://speakerdeck.com/fperez/project-jupyter>. Project site: jupyter.org .
I haven't heard of it before, but if I understand correctly, the Jupyter project is about splitting the language-agnostic parts of IPython out into its own project. Looks interesting! Sam