Another (final) question:
ipad mini or regular ipad? And: how many gigs does one need 16, 32, 64?
I think mini or full size iPad is personal preference
If you are deciding to go with foreflight and you want to download all the charts (VFR sectionals and ifr low and high enroute) for the entire US you're looking at needing at least 12-14gb for just the foreflight app so you'll need the 32gb.
You can get away with 16 if you don't download everything for use in flight.