For those interest in how objects are handled in MMO type games. Here is a commercial library that some games use for writing a network layer. This library also has indie developer license.
http://www.jenkinssoftware.com/features.html
It's RakNet. Also it's kinda bloated and "the whole kitchen sink" because its commercial.
Also maybe check out Torque Network Library :
http://opentnl.sourceforge.net/doxydocs/
It has the principles of Ghosting (similar to mxo object views) and RPCs
The entirety of the Torque engine will be released under the MIT license soon, so that might have an even better network library in it
