Some background on this: our prototyping tool allows you to write code in the browser, and the way maney people use it is they open a prototype on one monitor and then have the editor on the other one. So you save, alt-tab, refresh, just like you would if you were writing code offline.

After seeing LiveCSS (https://github.com/ooyala/livecss) we figured we could take the idea a step further and get rid of the need to alt-tab and refresh in the first place. It's a simple gimmick, but in combination with our prototyping app, it suddenly (in our eyes) becomes a lot more interesting. Why? Because your client can watch changes happen as you make them. You don't have to sit there on the phone/IM saying "refresh it now. Ok, how about now?" - they just see things change. Especially if they use a browser that supports transitions - it's way cool to see your design morph back and forth as you consider various options.

Very cool and great demo. I can see a lot of keyboards being saved with this.

As a vim/keyboard-only ninja I'll pass. Cmd-Tab, esc, /whatever, i, changes, esc, :w, Cmd-Tab, Shift-Cmd-R does not take longer than 3 seconds for a single change. But it's very promising.

You missed an enter/return there ninja. That way you'll highlight "whateveri".

Also, as a free tip, try hitting esc (or better still, map it to jj) soon after you finish inserting, not before you want to run a command. This way you're always in normal mode, ready to edit and issue commands. That's whole point of vim: inserts are rare, edits are common.

Regarding the actual script, server is down for me, but the idea is quite nice. Editing and reloading is very different from live editing.

Good points.