Of course, but if there was a standardised sort of style used by most applications, then recreating it using Bootstrap would seem like a lot of effort for little benefit. If there isn't much of a standard style, then this is really neat - that just seemed like an odd situation to me. My impression was that there would be a style, and Apple would enforce it, but it's great if that's not true. And fair enough, googling for Garage Band iPad..it looks unique.