It is not that much that I am using my iphone. Got if from rogers without the data plan and just using it when I have a wifi network around me. The first application that I installed on it was FaceBook application. The application at the first days was great but as I explore it more and figure out the restrictions I am not using it more often. There are several shortcoming for the application like you can not see the events, this is a great part of the facebook that I really like, the other one you can not maximize the images. It would have been a really cool feature if with the touchscreen screen of iphone you could easily zoom in and / or out the images of your friends. you also can not comment on some of the stories published on your home page, like when your friend change his status you are not able to comment on that.