Depends on what the service is. I like it if Windows Azure calls me to see if they can help me with work. If I'm just trying out your social networking app and

Depends on what the service is. I like it if Windows Azure calls me to see if they can help me with work. If I'm just trying out your social networking app and you call me, I will log out and delete your stuff because I don't want that sort of relationship with you.