Looks pretty cool, will need to spend time with it

I cant give a detailed review without actually spending a reasonable amount of time in the app. But feature set and first impressions are positive. Feature suggestions: tag completion, editing support for Ruby on Rails, nested syntax highlighting, basic method completion in the same file scope (a la TextMate). Couldnt find any way to toggle between soft and hard tabs, or control their spacing.

Hagus42 about HyperEdit