I'm wondering if this is the mindset that most people have. The idea of putting you're entire personal dataset (and work dataset?) into a free service has always seemed terrifying to me. Especially one whose entire business model is based on using that data to serve you ads! I keep local copies of everything and backup daily. I don't trust anyone with such a complete picture of my digital life. 'The cloud' is overrated, at least the free, ad supported version is IMHO.