Google Glass' user interface revealed

This is amazing. Not only has Google just opened up the pre-order program for Google Glass to 'creative individuals', it has also unveiled what the user interface looks like and how it works. It's... Nothing short of amazing. I'm throwing money, credit cards, my car keys, my house keys, my Surface RT, my cats, everything at my screen. I want this so bad.

The user interface is controlled through speech, and additionally through what appears to be a small trackpad on the side of the device (for silent operation). The user interface itself sits at the top-right of the visual field and... Well, just watch the video.