If I have to pick one platform, it's going to be Android. I already know Java, but even more simply than that, I know Javascript, and Appcelerator's Titanium lets me basically write an app as though it was a web app. I don't have to invest 2 months of intensive study at the cost of my other work; I'm going to go with what I know.

Companies that have existing resources in Objective C, sure, they may choose to go with the iPhone. Developers who already know Objective C will go with the iPhone. Developers who, like me, don't yet know Objective C, and have been interested in development on the iPhone through PhoneGap or Titanium? We're not going to bother with the iPhone.