https://www.youtube.com/watch?v=mhwqNIh_U-8
SeatBuddy is a case with two flexible straps that lets you hang your iPhone on an airplane seat tray, a car seat, a glovebox, and even on a treadmill—for the benefit of Mr. Chen.
https://gizmodo.com/review-surfshelf-treadmill-stand-for-laptops-is-brilli-5350492
https://www.youtube.com/watch?v=lPX9cqIfWx4
https://www.youtube.com/watch?v=hyjpGmEqG78
https://www.youtube.com/watch?v=AzIVdO-pwaw
It seems like a very good idea, although the image will get bouncy before your airplane crashes in a secret island, or as soon as you get with your car into the bumpy streets of NYC. Honestly, I don’t know what’s the worse fate of those two. [Cnet]