Define "serious work."
I'd say the work I do on an iPad is "serious" enough.
Is doing a Master's Thesis in Pages on the iPad while in a hotel room in Niagara Falls not serious? Or is working on serious paper toward serious degree not serious?
How about a lawyer on the road composing an e-mail to opposing counsel? Is serious lawyer not so serious? Seriously?
Or how about the Doctor using the iPad to treat patients seriously?
http://www.youtube.com/watch?v=CzMmYV8DO_A
Serious or not serious?
Old definitions are being blown away. Seriously.
Interesting that you don't reply to the posts this subject and quote them. If you did you might have quoted me saying that anyone can find narrow examples where the iPad is useful, or people who can put up with it. Obviously not everyone is a doctor. Who cares if one person wants to write a thesis on his iPad? Broadly, the iPad is less productive than a computer with a keyboard and a pointing device. It's just common sense, it's much slower to type on a touchscreen and using your finger as a pointer is inaccurate. There is very limited software for the iPad compared to mainstream OSes, outside of games and repackaging of websites. Most people will find it slow, clumsy and frustrating.
The fact that you have to reach so hard to find examples is just an illustration of how much the iPad is removed from the productivity mainstream. It's a heavily hyped toy. That's all it is.