At AllThingsD's mobile conference today, executives from both Google and Facebook said they would like to have deeper and more extensive integration with Apple's iOS -- and both would like to be featured more prominently in the operating system, though neither company seemed to think such a development was very likely. Google chairman Eric Schmidt, according to CNET, spoke today about Google and Apple's interactions related to apps: Schmidt … declined to say why Apple decided to go with its own mapping system rather than working with Google as it had in the past. But he said his company is still pushing Apple to use Goo