Motion Computing's Windows 7 tablet: what chance against the iPad?

Motion Computing was one of the first companies to really try to make tablets running Windows into a profitable niche. It's here again at CES and it's showing off its range of tablets for this year. The obvious question: how good is it when you're trying to control it (rather than just watching video, which is a waste of a big operating system) and input content? We got Motion Computing's people to show it off - though the results were, to be honest, mixed. See for yourself how they got on in this demo which involves annotating a PDF, and watch carefully for how well things go when he's using his fingers and when he's using the stylus. Camera: Dan Chung