That's a rate of 27 million per quarter, which is slightly more than both iPhone (14m) and BlackBerry(12m) combined.
As people continue to migrate from featurephones to smartphones, it seems Android will be the way most people interact with the new generation.
And why not? My girlfriend got a low-end Android phone (Samsung Galaxy 3) for 220 eur (cheaper than most dumbphones) and it's amazing. Fast, responsive, capable. I don't think it'll be long before Android is what Symbian was three years ago...