Interesting, it doesn't show a way to charge that brick. I assumed it would have USB-C for charging, though perhaps MagSafe makes more sense given the propensity of the user to stand up and start walking without realizing he's plugged into the wall!

I also wonder if it will use the other type of MagSafe (like on the iPhone) charging. I could see the argument for convenience, but presumably this would be significantly slower charging than over USB-C.