Windows Phone Thoughts: Think Outside Bluetooth Mouse For Pocket PC

Roel Martens of the great Dutch Pocket PC site Pocket PC Club has posted that Think Outside is not only to offer a Bluetooth keyboard for your Pocket PC, but also a Bluetooth mouse. I think that is a great idea, since when I'm using one of these foldable keyboards I don't like that I need to tap my screen once in a while. Using a mouse would be more natural to me. What do you think? Would you need to bring more on the road than the following setup?