There’s an interesting post up on TechCrunch that makes a pretty bold claim. From the site:
Smartphones like the iPhone are built from a collection of components, which are sourced individually from suppliers—e.g. the iPhone 4’s cellular baseband (the core chipset used in mobile phones to handle voice and data communications) comes from Infineon and its GPS chipset from Broadcom.
Component purchases and manufacturing starts don’t typically reveal strong links to individual handset OEMs. But in some cases components have a DNA which is traceable through the supply chain. For example, iPad rumors became much more concrete when we knew Apple was procuring large LCD screens.