I'm blown away by the number of Android developers. I wonder how many of those who voted are just hobby / tinkerers. While looking for experienced mobile devs I have found many great iPhone devs and so few great or even interested Android devs. This poll speaks otherwise.
I do professional Android development. From a Swedish point of view, my observation is that we have more iOS developers than Android developers, but Android is quickly gaining traction. More and more customers ask specifically for Android _and_ iOS versions, instead of saying "we want an app" while thinking of iPhones.
We're about 50/50 with android/iPhone... It used to be everyone wanted iPhone and then eventually some folks would want android... now it's an even break. I think it's just a sign of the times, when you ship more handsets, more folks want software for the platform.