Sadly based on that video the iPad looks useless for in cockpit purposes - such a shame.
IO - the Sumo looks a good solution, but no one seems to obvioulsy sell them - have you found a supplier?
As you know I am all glass anyway but for other reasons I am interested to see whether anyone comes up with a useable sun light readable notepad. The Motion pad does a pretty good job but I dont think they are any longer manufactured?