Leafsnap uses face-recognition software to identify a species of tree. Can it create a new generation of conservationists?
To date, the world of mobile phone apps has largely left me cold. Yes, I can see how you can easily lose an hour of your life – or more – to Angry Birds. But the most interesting and potentially useful developments I have seen so far are apps such as Shazam and RedLaser. The power to identify and recognise non-text based things such as images and music points to just how potent and useful mobile phones are becoming.