2) Facebook Application For The iPhone

From the launch of the iPhone 3gs, developers have created a facebook application. With quick access to the social network users can check their inbox messages, check who is signed into their online chat and even upload pictures straight from their phone!

Having an iPhone 3gs myself, i have found this application ideal. One of my best features on this application would be the ability to upload mobile pictures on the go using my email address. 

Another unique feature is the push notifications - this allows users to receive messages whilst the application is closed. You are also given the option whether you would like to turn the push notifications off or not.