Wow, that's really awesome! I might buy one just to fool around with it.
I looked at pictures of the phone in their store, and cannot see the same switches as are shown on the page you linked to. I'll assume they're under the back cover or something. I hope at some point they'll move these to a quickly-accessible location on the outside. I'll leave them some feedback to that effect as well.
If there are any independent phone makers listening - I would switch from iPhone to Android if it had switches like these.