And it's not market share of "phones in active use", it's market share of "phones sold during the quarter". And it's not compared to the market share of phones

And it's not market share of "phones in active use", it's market share of "phones sold during the quarter". And it's not compared to the market share of phones sold last quarter, it's compared to the market share of phones sold during the first quarter of last year. In that time, we've seen the iPhone 3G release, a rollout to many more countries, and a big advertising push, which no doubt helped their market share immensely.