It seems like Microsoft could really benefit from having conversations (or hiring) experts in the (ahem) "UI" design of aircraft. The ergonomics, feedback and force required for action on controls, button placement.... all the sorts of things a pilot has to do to interact with the machine are very well studied and, more importantly, quantified by excellent engineers. That engineering expertise could surely be translated to the physical interface of a tablet in a way that is much less possible or relevant for a keyboard and mouse interface.