A bit of background: This mom has a son - who is 13 years old - who wanted a iPhone as a Christmas present. He got the iPhone, but with plenty of strings attached. Take a look at the contract he has to agree to to be able to use his phone:
This caught my eye earlier today. After reading it, I have to be honest: I strongly agree with virtually every rule listed. The woman's son in question is now at the point in his life where he's transitioning into a young adult. At that point, he will find himself in numerous situations - both good and bad - and gradually assume more responsibilities for his own actions overall.
If I ever have kids, I may consider doing something like this to them once they are old enough to gain the privilege of having a cellphone, of course! Being responsible and maintaining discipline with cellphone use can go long ways out.