This year its all about the S. In this case, the S stands for speed, a nod to the increased processor and memory bump from the iPhone and iPhone 3G. This time around you'll find a 600MHz processor and users now have an option of 32GB, though the S comes in a 16GB flavor and the iPhone 3G 8GB will still be available as well. Other improvements include voice control, improved battery life and Mobile OSX 3.0. So, the $64,000 question remains, is it worth the upgrade? Stay tuned for our full review soon!