Each week Ross Rubin contributes Switched On, a column about consumer technology.
The last Switched On introduced the opportunity of the Kno tablet, which is in transiton from having a large hardware footprint to having a large customer footprint. Without question, the Kno hardware is an outlier, but could be simply a first salvo in a battle for digital textbooks that will take years to play out.
Look at the ironic development of e-readers. Today's LCD-based
