1. Google Docs.
2. Gmail, Google Docs [Free]
3. Google Docs
4. Google Docs can preview / edit. You just need internet.
I haven't used office in ages. I consider myself a fairly early adopter of technology and yes I've moved on. My mom has not, I don't think she ever will.
It's like mobile phones made wrist watch redundant. But people still wear them for:
1. Luxury.
2. Habit.