It is, of course, relative. My laptop is _more_ casual than my desk top, and I'm finding my iPad more casual still. Now, I often use my laptop _as_ my desktop

It is, of course, relative. My laptop is _more_ casual than my desk top, and I'm finding my iPad more casual still. Now, I often use my laptop _as_ my desktop computer; hook it up to a larger monitor, mouse, an external keyboard, stereo/video/telescope/interociter/history eraser button/etc. But that doesn't mean that my laptop experience isn't casual when I plop down on the couch, sans accoutrements, and surf hacker news, listen to music, or watch a movie. And the iPad is more casual still. And the fact that I _can't_ do many things that are not casual may help to keep it casual. Maybe not... (And for the record, just carry the iPad into the "little room down the hall" for the _ultimate_ in casual computing...)