FWIW, I don't see Apple mentioning it anywhere else, but the Apple Pencil page mentions the charge connector being able to fit even with the iPad Pro's "Silicone Case." (A smart cover or smart keyboard would not matter: those don't cover the Lightning port.) So an Apple Silicone Case must be another upcoming accessory. I hope it's like the Air Smart Cases—I like that design, but I don't buy leather. (And the keyboard, which is not a full-form case, doesn't tempt me much based on price, being thicker on one side when folded behind.) EDIT: See below: NOT a "Smart Case" probably, just a rear cover (which theoretically has a cut out to be coupled with a keyboard/cover).