Seems like Codeenvy open sourced their IDE.
https://github.com/codenvy/che/commit/db5b0bc2a1e2b4f3d7a7a2...
We started on it about 18 months ago. It takes a long time to get through the branding and legal process.
We believe that the 4.0 release in a couple months will have finally resolved the branding items and the remaining Codenvy elements will have been removed.