I think it's good. It's based on open standards, has a proactive and engaged organisation behind it and, crucially, a community of users. Not to detract from t

I think it's good. It's based on open standards, has a proactive and engaged organisation behind it and, crucially, a community of users. Not to detract from the OP. (Edit: It's an open standard. There are plugins for different browsers, a web interface and API)