If God chose not to know something, would he be God?
Me: Will I choose to go to Safeway or Frys?
God: I don't know...
Nope, it doesn't work. Saying that He chooses not to know is taking away His being God. Can God know all choices and all possible choices and the implications of each one while allowing us to choose? I think this is closer to the truth. It's slippery ground to say that God chooses not to know certain things. Why would he CHOOSE not to know?
Some don't like the idea of God's omniscience. But that doesn't change if He is or not.