One thing I was missing from the presentation: Can it finally connect both a keyboard and a pencil, i.e. does it have magnets on both sides?
While "the new Apple Pencil starts charging when you place the flat part on the right side of your iPad Pro." from: https://www.apple.com/apple-pencil/
So it looks like the answer is yes.
I'm hoping this leads to a future where 3rd party accessories snap on and charge.