PDF handling on the iPhone and iPad has vastly improved over the last year or so. Not only can you scan documents as PDFs using the camera, you can sign documents and send them off to the recipient, ...

You don't need a physical scanner to quickly sign, scan and send official documents -- just use the iPhone in your pocket.

There are some tasks that will never be suitable for a smartphone—serious video editing and serious spreadsheeting, for example—but there’s plenty that you can do on these pocket devices, and that ...