"Will it Blend?" -- harmless fun, senseless gadget murder, or... educational science experiment?
While the original iPhone 2G's shiny metallic backing was powdered by the uber-chopper, the iPhone 3G's plasticky backing, counter-intuitively, survived pretty much in one piece (one really thrashed piece, granted).
Macenstein claims their birdy pointed out "Apple never said it was plastic."
However, Steve Jobs said just that during the WWDC 2008 Keynote (at roughly the 1:26:20 mark in the podcast version): "It's got a full plastic back."