iPhone 4S is big dissapointment IMO. I had iPhone 4 and in May I bought SGS2, which is much better and faster phone. I hoped Apple would launch iPhone 5 with a bigger display, but 4S is a joke IMO. I little improved iPhone 4 isn't enough and I guess Apple won't have great year. Also SGS2 works great and I like Android a lot, so I doubt I would go back to closed OS like iOS.
Next week Google and Samsung will launch Google Nexus Prime (or Nexus Galaxy):