Real work. Graphic design, Page layout on and on is best done on a large screen. Most of my work is done on a 17" MacBook Pro. My best work comes from my Quad Core MacPro and 30" Cinema Display.
"...like reading articles on the Internet, or reading books or listening to TV programs or listening to radio programs or to podcasts or several other things like that..."
And the iPad is the hands down best way to do these things.
what do you mean "once it comes out?". I got my keyboard and dock last week. What I don't have yet is my 3G iPad. ;^(>