I found this rather neat concept for iPhone 6, just thought I would share it as is rather impressive. I know there are a ton of concepts on YouTube, I am not promoting anyone, it's just one of the better ones I have seen...
http://www.youtube.com/watch?feature=player_embedded&v=DRcchbulRSg
http://www.youtube.com/watch?feature=player_embedded&v=DRcchbulRSg