Apple's newest iPhone actually costs slightly more to make than the older version in spite of the more modest update, iSuppli says. The iPhone 3GS' total bill of materials amounts to $178.96 for a 16GB model, or slightly more than the previous $174.33 of the 8GB iPhone 3G. Some of the cost difference is attributed to recent rises in the prices of NAND flash memory; although 16GB costs less to ma
