An article by Arik Hesseldahl on Business week takes a look at the inner workings of Apple’s new iPod nano, and notes that iPods get cheaper and cheaper to make with each revision. “The computer giant has skimmed fat from the cost of producing its iPods, as researcher iSuppli discovered in its latest peek inside. iSuppli took apart the 4-GB version of the nano and estimated that the materials inside cost US$72.24. That’s a drop of more than $17 compared with what Apple paid for the guts of a 2-GB version of the first iPod nano device. The new 4-GB players come in four colors and sell for $199. [Thanks to MacMinute reader Alison Bradley for this news tip.]