What I liked about Component Pascal was that it extended Oberon-2 to have an OOP model more close to Object Pascal as exposed by Turbo Pascal.

Also their designers were pushing for programming with components, instead of pure OOP. Basically a type safe way of doing COM.

The first edition of "Component Software: Beyond Object-Oriented Programming" used mostly Component Pascal examples.

http://www.amazon.com/Component-Software-Object-Oriented-Pro...