I don't usually chime in on these, simply because I like to just bring you guys the news, and let you discuss it, but I thought I would throw in some math that actually makes it seem more plausible. When you consider that our planet now has 7 Billion people on it, and only roughly 350 Million of those are in the United States (about 5%); then you factor in the rapid adoption of smartphone phone tech throughout the world, especially in China, Japan, Korea, Europe, and even the developing nations, then, taken as a whole, a figure of 250 Million Android activations begins to come into perspective as an easy number.
That number is less than 5% of the total population of the planet. I am not taking sides, or stating that I agree with the numbers, but sometimes, here in the States, its easy to get in a mindset of forgetting that there is a much larger world out there than we see, and these numbers don't really seem that inflated when you look at it from that perspective. Apple's numbers were pretty crazy when the iPhone first came out. Just food for thought...