I try to picture Leopard as a catalog of shareware and commercial features. If an independent developer had showed me an alpha of Time Machine and told me that he intended to box and sell it as a standalone backup app for $79, would I think he was charging too much, too little, or that he should release it as freeware and be grateful for an occasional case of beer that might arrive from an appreciative user?
With that, Andy Ihnatko answers the question What’s Leopard really worth? Or, more specifically, what are the individual components of the new OS worth?
This is a very good review.