The Helmsley Charitable Trust, the Alfred P. Sloan Foundation, and the Gordon and Betty Moore Foundation just announced a $6m grant to UC Berkeley and Cal Poly to fund Project Jupyter. Jupyter evolved from the iPython project, abstracting the language-agnostic parts. It also serves as an interactive shell for Python 3, Julia, R, Haskell, and Ruby. I think the most notable thing it provides is a web-based GUI “notebook” similar to what has been available in Maple and Mathematica for a while. (Maybe Matlab, too: I have not used Matlab much.)
Correction: Jupyter serves as an interactive shell for a lot more than what I listed. Here is the full list.