XoXo is a non subtile reference to the Gossip Girl tremendous TV series. The real module name should be "OOXO" which stands for "Object Oriented eXperience Objects".
OOX stands for Object Oriented eXperience. It's an helper module providing pieces of Object Oriented API I needed at a time for some projects.
The main feature of this module is a generic object registry handling. This registry is based on descriptive array's provided by modules' custom implementations.
Also provides an application-level locking framework.
This module was originally designed for the Bricks module (Drag'n'Drop redactional helper) that never has been released so far.