Re: P7-P9. I don't think the author is confused at all. It seems to me that those in the market for a netbook would strongly consider a tablet as an alternative (if a tablet wasn't already in their consideration).

In a year or two, I could see somebody's technology collection consisting of smartphone/laptop|desktop/netbook|tablet. I have a harder time imagining the average consumer being interested in both a netbook and a tablet.