The iPhone 4S was released in Oct. 2011 and it really is pretty stellar. As a former Android user, I found it quick to adjust to the iPhone platform. Really the standout of this model is Siri, the personal assistant that takes voice dictation. Siri is super useful and I find myself using it more than I thought I would because the voice recognition software is THAT good. Siri can send texts, create appointments, and remind you to do things. You can program Siri to know who your mom is, where your house is etc - and respond accordingly - (Ex: "Call mom." "When I get home remind me to take out the garbage."). The camera is gorgeous and the phone runs really quickly. The app store is top notch - they really have more than the Android market. My only complaint is that the mail app isn't so great - I really miss having Gmail built in!