There has been some lovely discussion over at Richard Brown's blog, "Philosophy Sucks!", devoted to the question of whether omniscience is compatible with free will. There is vigorous discussion in the comments. The posts so far are:
Plantinga on Free Will and Omniscience
(I Think) I Got It!
Third Time's the Charm
Re-Inventing the Wheel
Does God Know About Quantum Mechanics?
Much of the discussion has been less about God and more about to handle talk about possible worlds, but there are many other topics discussed in the posts and the comments on them.