We are working on it. We aim to support all the major languages and their popular frameworks soon. For now you have syntax highlighting for Ruby and more languages, which combined with GitHub integration already makes it a sweet platform to develop on.
I really like the idea of having an editor that I can play with on all of the things that I don't want to, or can't, setup an editor on (iPad, various laptops, etc). Is it possible to have a non-hosted version that I could put on my own servers as well, that I can then access from anywhere I wanted?
The aesthetic quality is superb by the way. Who does your UX?
How are you planning to achieve that? Via some X-to-LLVM-to-JS compiler? And what about system functions? Emulating some simple filesystem? Sockets would also be nice...
It will happen, but there are many languages out there, each with its own runtimes, debuggers, etc. We are first focusing on making the IDE solid and stable, and then we will focus on what people want. In fact, thanks to the work done by the Mono guys C#/F# shouldn't be difficult to get working, but for now there are more important hings to do.
