If you've watched the video below in my first blog you'll have seen that iphones for sale have already got many built in features, known as Apps, including calling, mailing, messaging, music, videos, photos, itunes, maps and many many more. The great thing is, you have the option to obtain over 500,000 other Apps from the App Store and many of them are free. So wherever you are or whatever you're doing it's like having your computer in the palm of your hand.