A rich new JavaScript code editor spreading to several Microsoft web sites

I noticed yesterday that some C#, JavaScript and CSS files I had sitting in SkyDrive were suddenly editable. Not just editable, but there's also autocompletion of strings (not quite intellisense, as it's just one file at a time) and token/symbol recognition. Plus, this editor looked REALLY familiar to me. I started looking. I looked over at the Windows Azure Portal, where developers can write node

[yosuke_furukawa]

スカイドライブってGoogle Drive的なのと勘違いしてた。JSエディタにもなるとは。