Digits by Twitter

I'm pretty intrigued by this new Digits service from Twitter. Onboarding via mobile phone is not something that I feel super comfortable with from a desktop environment but when it comes to app or mobile experiences, it feels right at home. It looks like they implemented it in a way that is shockingly easy to adopt as well, so I expect to start seeing it a lot more. I wonder what level of concern there is that somewhere down the line Twitter will just decide to change the rules / freeness of it all?

The new framework is actually part of a much bigger plan that involves Twitter becoming more of a mobile platform that provides inroads to analytics, onboarding and, obviously, social chatter from their user base. How all this turns into monetization I'm still not sure but I love seeing them go from a service that was lambasted for the frivolity of content into something truly useful!