Outtake: 
Twitter has millions of monthly users, growing revenue, brand awareness, a propensity for breaking news, and data ripe for mining. Adding to this, Twitter’s main feed allows advertisers and media outlets to grab users’ eyeballs in a time when so many are looking away from the big screens in their living rooms to the small screens in their laps. But Twitter also has a growth problem, which potentially limits the extent of what it hopes to accomplish, and the revenue it could earn.
Twitter’s problem and its potential lie in its mobile nature.
On Thursday, the company revealed a steadily rising user base, 138 million monthly actives in March 2012, going to 218 million now, 75% of whom are mobile. But its sequential growth from quarter to quarter has been declining. 18% growth in monthly actives as of March 2012, followed by quarters where growth fell between 9% and 11%, to finally just 7% growth in June 2013.
MOBILE-FIRST FROM DAY ONE
Twitter was, in its own way, a mobile-first company before such a buzzword even existed. Launched firmly in the midst of the “Web 2.0″ era, where social networks weren’t established destinations, but more experimental...