And here I thought NAND, not DRAM, was the big component of iPods. DDR2 is in Apple's notebooks http://www.apple.com/macbookpro/specs.html , but I have doubt you could fit a stick of DDR2 into current iPod models. Sawed in half, inside a hollowed hard drive, maybe?
I would believe reasoning that associated iPod sales with NAND prices, but I'm having a hard time wrapping my head around the relationship between iPods and DDR2.