You are right that the IPad does get bunched up a bit when you are buckled into a seatbelt, butI just adjust it around of pull it out when driving. When I board a plane I take it out and put it in the seat pocket. But really, people can't tell I have one on me until I pull it out. In any case, when I started buying the ScottEVest jackets years ago before the IPad, I was using these jackets to carry a lot of other things. Being able to carry an IPad like it can is a major bonus. I appreciate the jackets even more now.
R,
A. Cheng