FE Hoppy,
I don't know if you are a pilot or not (it is irrelevant for this matter, but maybe not), but seems pointless to me to try to waist my time to explain why do I use my iPad on a A320 (but hey, it could be inside my car also).
"Private use" can means hundreds of things and I will name some of them to you: take notes in flight, study aids, keep my electronic logbook up to date, just to name some of them.
And yes, my company is still giving me the "privilege" of carrying almost 60 pounds of paper each time I fly and I intend to use all of them every time I have to.