Going through advanced Mail, Contacts, Calendars settings on my iPod Touch with iOS 4.0, I noticed an option for fetch, instead of push. What exactly is the difference between fetch and push for the user, and how much does it affect my battery life?
I'm assuming it's for alerts that come from an application but not from a server, and the fetch setting time is the amount of time they are allowed to push out these messages or something? I think I'm wrong, I'm confused.