Earlier this spring the Android operating system made history when it outsold Apple's iPhone. Now comes confirmation this wasn't a one-off: Google's Andy Rubin says that 200,000 Android devices are getting activated each day. In June, Google was reporting the number at 160,000 a day, up from May's 100,000 a day. And this week, a market research group issued its latest finding: Android overtook the Blackberry to become the top-selling smartphone platform in the United States.