I agree about information density, and lousy options for keyboards also makes me avoid tablets for serious work. However, less tech-savvy people -- you know, t

I agree about information density, and lousy options for keyboards also makes me avoid tablets for serious work. However, less tech-savvy people -- you know, the type who get confused when there's more than one application window on screen at a time, or who gets confused when there's a tabbed web UI inside a tabbed browser -- are probably more productive with less information density, because it also means simpler and less-layered interfaces.