Evernote and Flipboard (both had major updates this week) also have a heady focus on iOS versus Android, as ZDNet points out.
The economy of Android’s OS is still maturing, from the developer standpoint to its revenue models. Google may boast about having reached 10 billion app downloads, but they’re less giving with revenue numbers. Nevertheless, Google’s got a strong business behind its search and advertising efforts, and a widely adopted mobile platform. As these two paths continue to converge, we may one day see more Android exclusives than iOS.