Iggy is a very good player, but he is not a good fit next to Lebron. Iggy is best when he has the ball in his hands, and can create for himself and others (much like Lebron). Really, if I was going to describe Iggy, it would probably be as a homeless man's Lebron.
I would be much more worried about the Cavs getting a versatile PF like Jamison, than a go-to wing like AI.
I also don't see why Cleveland would take on the other contract that Philly wants to package with Iggy, unless they think Brand has enough left to be rejuvenated in Cleveland (he might scare me a bit there).
Moral of the story? I think this is a non-story. Just like Hinrich is not going to the C's, Iggy is not going to the Cavs.