Gallery: iPhone 3GS Teardowns Reveal Underclocked CPU, More | WIRED
Apple iPhone 3GS Mother Board Replacement (8GB) AT&T - 100% working ORIGINAL | eBay
Apple Demo on Twitter: "Prototype iPhone 3GS (EVT) Red Board running SwitchBoard. These units where Engineering Samples with only a 2GB NAND (storage) installed. The copyright date on the back is 2008.