I was too late- I would have said Ben uses it in flight, in his car! I've seen him drive his WRX... Even the iPhone gps is laggy beyond walking pace. All the iPad tools are great and useful, but if I was a real world pilot, I'd never rely on it solely, in case of crash or battery issues. Cool to show the chaps back at the flying club I'm sure! Its best use is, like Ben says, for reading casually on terra firma, maybe memorizing charts, procedures etc, in a light portable way, better than carrying the whole US AIPs around! Or showing to an instructor and discussing alternatives.