Ross Rubin (@rossrubin) contributes Switched On, a column about consumer technology.
If the PC marketplace were an ocean, you'd see a strange sight -- small fish (netbooks) eating medium-sized fish (notebooks) eating large fish (desktops). But PC vendors are only partially pleased with this inversion of the natural order. While they embrace the replacement of desktops with higher-margin notebooks, they fear the cannibalization of notebooks with low-margin netbooks. Fast-growing and inexpensive netbooks have become such a threat to the notebook busi
