Many geeks drool over PDA's. I don't own one, and I've never been tempted. So I always like a story that suggests that I'm not alone.
PDA sales are flat, and it seems pretty clear that the future for mobile devices or whatever is with wireless. Sooner or later almost every handheld will be able to wirelessly connect to the Internet in some way or another.
I like a mobile phone. And I think I would like a small laptop, like the Sony TR1A or TR2B or whatever the heck it is. The in-between form factor does nothing for me. If you want a screen that I can put in my pocket, I think you had better make it in the form of goggles.