We are just going to pull a quote from a Beyond 3D forum that we find quite interesting and let you all draw your own conclusions. We've covered the iPhone 3 processor race in more detail here.
With regard to the [iPhone] processor, I see Samsung have rather QUIETLY released a Cortex A8 App Processor , the S5PC100. Doing a google returns a grand total of 10 hits. There has been no press release for the product that I can find, and none of the tech websites have discussed it. It is not listed AT ALL under the app processor section of their website:-