Ask HN: what are some innovative new text editors?

A friend of mine had (is having?) a fling with Acme [1]. He's currently working on making his spinoff web-based to leverage CodeMirror and make things prettier. In his words: "it's a prettier acme in javascript with more automatic terminal integration".

I'm trying to get him to release the source, but he'll never think it is 'ready'. Hopefully Acme's interesting enough for now.

[1] http://en.wikipedia.org/wiki/Acme_%28text_editor%29

I find dex [1] interesting.

[1] https://github.com/tihirvon/dex

Look at LightTable.