It's amazing how much the concept of the mobile phone has changed over the course of just the last few years. While they were used to only serve the purpose of calling another person, they are now used in a variety of different ways. From standalone applications to video conferencing, new mobile phones are all about combining the real life and interactive realms of sociability. In short, they are being used as social tools more and more as time goes on.
There are many ways that mobile phones can be used as social tools. Of course, the actual "phone" function on these devices are perhaps the most obvious way that they can be used socially. On top of this, however, there are a wide variety of applications that can be downloaded and used on smart phones that can help to increase your social life. Applications for such social networks as Facebook and Twitter are widely available, allowing one to keep tabs on their virtual social life at all hours of the day, and from anywhere on earth.