My moby is never far away from me, however I don't always choose to answer it - depends on where I am & what mood I'm in. I prefer texting - simply cos I spend so much time on the damn phone at work, I avoid phone conversations out of work.
I have my mobile with me always as I don't have a landline. I resisted having one for years, but must admit on the occasions I have been without one (lost 2, dropped one in the loo and one broke during the Frank Sinatra incident) I do feel 'lost'.