Opera Mini had 50 million users in January this year. Not only that, but the growth seems to be accelerating. Just look at how long it took to reach 10 million users, and how quickly it grew from 40 to 50 million:
At this rate, Opera Mini will have 100 million users in May 2011. I'm guessing we'll reach it before that, though. Does anyone want to take a guess as to which month Opera Mini will pass the 100 million users mark? 🙂
And remember, these numbers are only for end-users. People who are using preinstalled and bundled versions of Opera Mini are not part of these statistics.