Found a good listing of Blackberry Service Books and what they are used for:
I recently contacted RIM when I came across the following issue:
Use Auto Signature or Out Of Office reply options on the BlackBerry smartphone are missing or non-functional(http://www.blackberry.com/btsc/KB24327)
There is incorrect data in the Desktop [CMIME] or Desktop [SYNC] service books.
The downside there is they are able to tell me a way to find users with the problem before the user uses it. And according to the tech I spoke to no way to remove the service book remotely.