What are the best metaphors to use when talking about a browser and an operating system? Is the combination like a car and an engine, or a car and a roofrack? A pair of gloves? Or is it even useful to talk about a browser/OS metaphor in the case of Microsoft, since IE has been glued into the operating system in the form of .DLLs? Might that be more like the wheels of a car? -Declan