I for one, like this. Now, the video & music are awful and definately do not support the overall presentation, but from what I understood, this seems to be pretty cool. Imagine being able to use Javascript for actual desktop application development, without having to resort to tons of html and css in the background. I do like this idea. Even better, it would allow to write applications in ClojureScript or some of the other compile-to-javascript frameworks). Of course, there're other frameworks that utilize javascript for scripting needs or for desktop development (
http://www.tidesdk.org/) (
https://code.google.com/p/chromiumembedded/) (
https://github.com/appjs/appjs) (
http://www.appcelerator.com/) and of course Adobe Air, but all of them just basically open a webview, give you some html that looks a bit like native controls, and let you write html / css / javascript in there with limited access to filesystem or, god forbid, the graphics card.
What I understood this project is, is that it allows me to use javascript to drive my native UI elements, access my full system resources, etc. Basically full native development, only Javascript instead of C++. Maybe a bit like Qt QML (http://en.wikipedia.org/wiki/QML) (and I'd like to see a comparison between these two). I'm really looking forward to this, though I have to admit that the website lacks details, and the video isn't particularly good. This looks a bit too much like demo scene hacking.