After a while, you learn that the best method of self control is to remove the easy distractions. And the design of the ipad is an easy distraction. Lock down

After a while, you learn that the best method of self control is to remove the easy distractions. And the design of the ipad is an easy distraction. Lock down would imply you don't own it. PG even does that by having two computers, and his work computer is not connected to the internet. If he needs something from the internet, he needs to get up and go across the room to the internet computer to get it.