Before you gang up on me and tell me I've posted in the wrong spot, how stupid can I be, etc.... I did read the definition for service book but as a relatively new blackberry user, what if anything is the service book actually used for? I've seen it mentioned several times now but still don't quite have a clue on what exactly it is. I know where to find it and everything but that's about it.
It's a piece of software code that gets placed on your BlackBerry device to enable certain features, or provide certain functionality.
For example, an MMS service book would be put on your device to allow your device to send/receive MMS message.
There's service books for numerous things... such as email, calendar, browser, IM, etc.