Emmet LiveStyle is a plugin for live bi-directional (editor ↔ browser) CSS editing of new generation. Currently, it works in Google Chrome, Safari and Sublime Text, more browsers and editors will be available later.
You can associate two completely different CSS sources for live edit. E.g. you can take minified and concatenated CSS source in browser, associate it with one of the source CSS modules opened in editor and use them for fully bi-directional live edit. You don’t need to keep you files in local file system: open it directly from FTP, your fancy network mount or whatever. If a file can be opened by text editor, you can use it for live edit. LiveStyle will be a paid product, but it’s free during public beta test.
Requirements: Google Chrome, Safari and Sublime Text
License: Free during Public Beta