There are other ways to do this instead of punishing paying customers that want
To add some features to the phone that apple choses to leave out and then finally
Releases some features years later. Look at copy & paste, how long did that take?
MMS, multitasking/backgrounder, more then a few icons in a folder.
Anyway, there were plenty of apps that had a block built in if the app was pirated.
Don't know how they do it, I'm no app dev but they're out there so why do they...