iPhone 6 Users

@Ibzz I have the iPhone 5 so I don't think I have to worry about this for a while. My sister just bought the iPhone 6+ from a repair shop, so if anything goes wrong, she will have to take it back to the shop.

If this is true and Apple disabled the phone when it gets fixed by a technician that is not approved by Apple, they will lost many many customers! (I hope so, anyway)!

I think this doesn't make any sense, as  you say they will lose a lot of customers, their repair shop will probably be overpriced just as all their products and it's probably not as handy as going to the nearest technology shop around your area.