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Smartphones are increasingly being used to capture audio and video. Whilst it's true they are getting very much better, they have limitations which prevent them from achieving the best of their capabilities: they are so light it's hard to hold them still they have very small lenses which limit the amount of light reaching the sensor their built-in microphones often face a different direction from the camera and cannot get close enough for good interview sound. Much of the footage that they generate is used simply because it can be made and it's broadcast only when there is no alternative. We have become used to the footage from Egypt, Libya, Syria and the London riots. But smartphones are also computers, and very powerful ones. They can run programmes which are able to interact with sound, stills and video. Editing apps are becoming very common and they can take the footage and turn it into the same sort of packages produced by the long established equipment and pr...