Sadly, I can’t. Why not? Because I cater to users in the education world now, and by and large, my users are Twitter users who don’t even know what identi.ca is.
See, this is the danger inherent to monolithic web services: the network is the lock-in. And if the web services provider changes access policies to that network in a way that you don’t like, then buddy, you’re out of luck.
So Twitter broke the entire open source world today with their move to OAuth. So what? Are all those Twitter users gonna move over to identi.ca?
Let me answer that rhetorical question for you: no. No, they won’t.
What’s more, the question of “open source or closed source” doesn’t even enter into it. Twitter could open source their codebase tomorrow, and people could set up their own Twitter servers, and it wouldn’t matter; all the users are at twitter.com, and no force on Earth would move them to fredsmicrobloggingservice.com.
The network is the lock-in.