So here is my question, besides the really shitty shopping cart objects out there is there any true components for a framework that utilizes this functionality? I say shitty shopping cart objects because just about every single open source PHP shopping cart has some of the worst design aspects I have ever seen.

His complaint is that most of the shopping cart software out there is really just procedural (or bad) code shoved into classes and called good. He suggests a more patterned approach - maybe using a Factory on top of a base abstract model.