The iPad is not completely button-free, and knowing how to use the four physical controls on the tablet can help you get more out of it. Let's review all they can do.
Tips and tricks - iPad Pilot News
Choose iPad settings for travel – Apple Support (MY)
10 Things every iPad pilot should know
Understanding the iPad's controls - iPad Pilot News
Pilots cleared to use iPad during takeoff, landing
Pilot Report: Flying with the iPad's built-in GPS - iPad Pilot News
Pilot's Discretion: The iPad Proficiency Check - FLYING Magazine
Tobii TD Pilot brings gaze-based typing, text-to-speech and app navigation to iPad
Which Tablet? iPad vs. Android - Aviation Consumer
Apple: Update your iPhones and iPads urgently to avoid being hacked