Android Passes iOS And RIM For U.S. Smartphone Subscriber Share
techcrunch.com
techcrunch.com
Soon, soon.
On the other hand, your point about revenue is still spot on. Fewer paying customers, less expectation of paying for apps, and the glaring fact that you simply can't buy Android apps in a large portion of the world. The first two are difficult (a culture shift is required, and that can't be passed down from Google in an OS update), but the third is perhaps fixable. The issues with iOS aren't likely to change, because that's Apple's culture.
I don't know about RIM, and "Whereof one cannot speak, thereof one must remain silent".