I think most people are not exploring the full potential of the iPad to begin with.
The one thing I would like to see for the iPad is a well integrated keyboard dock with extra battery, similar to the ASUS Transformer.
For 75% of my needs, that combo, along with my iPhone, could easily replace my PC.
I am all about the post PC era. I know there are people that need hardcore content creation software, so a PC is a must, but I am not one of those people.