A:Answerit will work when it’s not physically connected. it slides into the top of the keyboard, but bluetooth allows it to work without being physically connected
A:AnswerIt will work with the 3rd and 4th gen iPad Pro 12.9”. They are the same dimensions. Be careful of what screen protector you get, it might make it hard to get the iPad in and out of the case.
A:AnswerNo. The hinges that the iPad sit in are not flexible. They are very sturdy and the iPad is well protected. Unless you’re going to be dropping the iPad and keyboard you won’t need a case.