To bad it doesn't run on Linux...
I am eagerly anticipating tools like this maturing to a level where really serious development can take place. I mean, I did a good bit of development in Flash and Flex but things really didn't take off for me until there were really powerful editing tools that went beyond dropping a few things on a canvas and tying them together with code. This tool but at a Unity 3D level of editing would super nice.
Really. I think you are missing the point. It's kind of sad seeing a modern browser app not being able to run on multiple platforms.
In my optics it undermines the whole idea about creating browser apps. If files system hooks are the problem, let me just save online or via the browser api.
In the future, I'd like to be able to get some stuff done without having to spin up 5 OS'es.