Fix The "Verifying iPhone" Issue In iTunes

I recently ran into an issue where my iPhone would take an inordinate amount of time to sync but I couldn't figure out why. The step it always seemed to hang up on was "Verifying iPhone," but why? After doing a bit of investigating, I found out that this step is actually a part of iTunes' backup process. So to solve the problem, I deleted all of my iPhone backups under the "Devices" tab in the iTunes preferences. After doing a full backup, my iPhone syncs nice and fast!

Enjoy!