What will a child in the UK make of a laptop designed to help children in the developing world? Rory Cellan-Jones brought an XO home to find out. In late November I returned from Nigeria with a sample of the XO laptop. The computer, made by the One Laptop per Child charity, is a robust little machine designed to entertain and educate children while allowing them to learn by themselves. I knew there was only one person who could review it for me. Enter Rufus Cellan-Jones. He is nine, has far more experience of games consoles than computers, and has strong views on most matters. "Looks fun," was his only comment when I handed over the small, green and white laptop, explaining that he was the only child in Britain to have one. But very quickly he was up and running.