Brilliant! Couldn't get it running in FF, but works like a dream in Chrome.
Very useful for interfaces which may run on, say, a TV. Knowing the physical size, or the viewport dimensions, doesn't tell you how far away the user is.
I was going to comment to say the same thing. I've been playing Dust 514 on my PS3 recently, it's enjoyable but most of the text is too small for me to read comfortably, if they could detect a player being sat further away and increase it then it'd make life a lot easier.
Very useful for interfaces which may run on, say, a TV. Knowing the physical size, or the viewport dimensions, doesn't tell you how far away the user is.