Any new product category didn't exist 1 day ago when it's launched, but we don't expect new product categories every day. In the 15 yars since Jobs re-joined apple to the time he died he's credited with introducing three new product categories: iPods, iPhones and iPads. Arguably iPads are actually just a scaled up iPod Touch and nobody ever lists the touch as a new category. From a technology point of view it was a modest revision of an existing product.
So personally I'd list the new product categories as only two - the iPod and iOS. It's just that iOS' revolutionary impact hasn't completely played out yet. I expect any new 'product categories' to be further extensions of the iOS family into new markets. e.g. Apple TV is an existing product running iOS, but if it grows an app store and games ecosystem, will that make it an entry into a new category?
You're right that the Mac Pro is an existing product line, but it's so radically different from it's predecessors that I do think it has a chance of being used in ways and contexts the old Pro never was. For starters it's tiny. It's agressive use of Thunderbolt is interesting, but also the emphasis on GPU utilisation via CUDA and OpenCL - one of it's GPUs isn't even wired up to be used to drive displays - is a bold move.
So personally I'd list the new product categories as only two - the iPod and iOS. It's just that iOS' revolutionary impact hasn't completely played out yet. I expect any new 'product categories' to be further extensions of the iOS family into new markets. e.g. Apple TV is an existing product running iOS, but if it grows an app store and games ecosystem, will that make it an entry into a new category?
You're right that the Mac Pro is an existing product line, but it's so radically different from it's predecessors that I do think it has a chance of being used in ways and contexts the old Pro never was. For starters it's tiny. It's agressive use of Thunderbolt is interesting, but also the emphasis on GPU utilisation via CUDA and OpenCL - one of it's GPUs isn't even wired up to be used to drive displays - is a bold move.