I hope there is some coverage of network programming in this version. I own the Advanced (red) book as well, but I'd like to see more of a Cocoa-centric client/server example. I'm looking to implement a client/server system that would probably be more suited for EOF, but I don't want to give up all that Core Animation, Core Data, and other Cocoa stuff that isn't available elsewhere. Does anyone have any experience using CD to model a local cache on a client machine that is populated by a server over the network? I presume this is possible now that CD is allegedly thread-safe?