I think that there's a barrier that the tablet can't break. That barrier is screen size. If you are willing to trust your job to a tiny screen, be my guest, but if I am doing work that I want to be accepted as professional, I want a bigger screen, and if I want to look at a movie that I really should be watching in a cinema, I want a bigger screen.

When trains and subways and planes and cars come with plug-in screens, I will just connect my tablet to the screen wherever I am and be happy. In the meantime, for fully professional work, I want a laptop.

For listening to mp3s, for reading books, for casual use, I want my tablet.