What's your guys' take on it? I've been playing around with it and am pretty impressed.
These are some scenes I exported out of Unity and rendered in canvas with J3D.js
Here's a live example: http://leefromseattle.com/jsonB/page.html
And I found this plugin for webGL in IE but haven't implemented it yet: http://www.iewebgl.com/Default.aspx
The skyboxes were free on the unity asset store heh.