As we eagerly await the arrival of the 808 PureView, video professionals are pondering the usefulness of that 41-megapixel sensor. On paper, it's capable of shooting continuously-focusing 34-megapixel video that's then resampled down when compressed, but blogger James Burland wonders what it could do with less resampling. He claims that a member of Nokia's imaging team told him that shooting at 4K "might be possible," although there are plenty of issues that prevent it being achieved on the 808 handset itself.The hardware wouldn't be able to handle the storage or processing requirements, so it's unlikely Peter Jackson will be shooting on a Symbian-powered device any time soon -- but in any case it's an interesting pointer to the future of cellphone cinematography.