Each week Ross Rubin contributes Switched On, a column about consumer technology.
For all the grousing about the minimal changes from the iPhone 4 to the iPhone 4S, Apple's fastest smartphone incorporates sweeping shifts compared to what the company did with its iPod line. From keeping the waning iPod classic in the lineup to leaving the still-potent iPod touch untouched save for a blanching and price reduction, the venerable digital media player line seemed all but ignored at a time of year when Apple once primed the holiday pump for MP3
