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Twitter Has 145 Million Registered Users (And 16% Of Them Now Start On A Mobile Handset)

So says the official Twitter blog.

They also have an interesting (and we’ll assume definitive) chart that shows the top 10 most popular ways unique Twitter profiles use to access the service. Twitter.com is far and away the most popular method, but it’s quite a feat that Twitter For iPhone already has almost three times TweetDeck’s share – including TweetDeck for iPhone, too.

The following chart shows the top ten applications people have used to access Twitter in the last 30 days. This is based on number of unique users. That is, out of all the people who logged into their Twitter account during the month, what percentage did so via each service. (The total is more than 100% because people often use more than one app.)

It’s great to see this kind of variety and growth in the ecosystem as it moves beyond basic Twitter clients. These new services help people get the most out of Twitter, contributing to user growth and new business opportunities–both of which are critical to the long-term viability of the ecosystem. We’re making great progress in these areas–we currently have more than 145 million registered users and the performance of our Promoted Products has exceeded our expectations. But we still have lots of room to grow and improve. We look forward to seeing what’s next.

145 million users is a leap of some 20 million since I last wrote about this in June, a number likely assisted by the significant growth in mobile users (which is up 62% overall since mid-April). More importantly, the platform is running a lot smoother since those heady days, although to be fair we aren’t up against a World Cup, so it’s not the best of tests. Still, as Twitter says, onward and upwards.

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