Hello I was an iphone 4 user for about 17 months. I was looking for iphone 5 but the announcement of iphone 4s made me buy the phone of google : galaxy nexus. This phone seemed better in specs but in daily experience for me as a user, it is way below the expectations. I am now thinking about 4s, would you please give me some of the most important new features of it. Otherwise, I might stick with the nexus until iphone 5 release.