Jothar writes:
Man yeshivas are banning these things. They are incredibly addictive and a waste of time.
That’s why we call them “crackberries”.
TorahMom:
The lock-code doesn’t allow any access to the phone until it is entered.
For something a little more flexible look in the iPhone app store under “parental control”. There’s everything from a kid-safe browser to ways of locking down selected lists of applications. No kids have access to my phone, so I haven’t investigated them.