Conveniently, there is a bullet point list of 5 items in the middle of that article. You are free to disagree with any of those points: http://www.paulgraham.com/disagree.html
Incorrect. If I read the article, and then dismiss the content simply because it was written by Rob Enderle, then that's ad hominem. On the other hand if I notice the article is written by well-known-fool Rob Enderle and don't bother reading it, then that's just good time management.
Note for the last headline:
"Rob Enderle, an industry analyst whom Dell hired to consult on the new entertainment strategy, said he is still discussing with Dell whether profits would come mainly from the subscription service or from devices tied to it."
http://webcache.googleusercontent.com/search?q=cache:exd_wDD...