Openness
Look under Openness Messages from Others
Steve may be coming from a perspective known as the "Openness of God" theology. This is one of the main controversies today as reported in Christianity Today. Some writers include Clark Pinnock, Gregory Boyd, Sanders, Olson, Otis, Hasker, Rice, McCabe, Wolterstorff, etc.
Some thoughts:
Omniscience is better defined as God knows all that is knowable.
Omnipotence means God can do all that is possible (some things are absurd or logically contradictory for God to do).
Can an omniscient being know the future free choices of man as a certainty before they happen, or does He know them as they really are= possibilities?
Much of prophecy is conditional! and shows God changing His mind and the future in response to man's repentance and prayer (Hezekiah, Ninevah). Predictive prophecy will come to pass since God will make it so regardless of man's choices (First and Second Coming of Christ). Only some of the future is fixed. Much of the future is open when it relates to free will contingencies (may or may not happen).
Time is an endless duration or succession (God is everlasting) and is an aspect of the personal God. The 'eternal now' concept is from Greek pagan philosophy. God experiences the past, present, and future similar to us. He knows the past and present perfectly (unlike us), but some aspects of the future are known as possibilities until they happen and become actual objects of knowledge (like a cosmic chess game).
I believe this theology is more Biblical (read dozens of books and articles on both sides and studied 100s of hours) and presents God as personal, relational and not an unchanging cosmic blob who is not truly free to act, think, change his mind, and experience.
Properly understood, it clears up many contradictions and aburdities with free will, predestination, election, prayer, evangelism, will of God, etc. (Calvinism).
Check out the above websites for a few articles to start your quest for a credible alternative to the traditional view. Steve's view of this prophecy may not be as wrong as it seems. It definitely also does not refer to NYC (shadow2b).