[bfelds]

This is an initiative backed by Bloomberg. It was pretty trivial to make a C++ (https://github.com/QuantStack/xeus-cling) and R (https://github.com/JuniperKernel/JuniperKernel) kernel around it.

It's pretty easy to use, the biggest work pending is in the widgets system for charting.

[jmabille]

We're working on it: widgets (https://github.com/QuantStack/xwidgets) and bqplot (https://github.com/QuantStack/xplot)

Also in the roadmap, a C+ backend for threejs and ipyvolume.