The difference between the 4 and 4S is so trivial that I cannot imagine breaking my contract over it. When it's time to renew for another 2 years (Dec. 2012), t

The difference between the 4 and 4S is so trivial that I cannot imagine breaking my contract over it. When it's time to renew for another 2 years (Dec. 2012), the 5 will be out, with LTE support. What do I miss out on in the meantime? A phone that talks back to me.