There was an interesting approach in one of the regular columns of Sound On Sound magazine (November issue) - Notes From The Deadline:
It addressed the general dumbing down and consumerism of everything musical, using an hypothetical future Mac release of OS and music software. It features a composer going to an Apple shop asking for the latest release of Logic Pro, only to be told of its discontinuance due to its not being what the customers needed (the company decides that), and that its more "useful" features (meaning loops, analogue synths, ES2, and other crap like that......) have been incorporated into the new flagship 'Garage Band Pro' "it comes with all the melodies you'll ever need already programmed in...", and "we had a producer in here last week who recorded, mixed and mastered entirely on an iPod Shuffle"....
Same with the hardware. No more desktops, when even the most complicated ringtone can easily be created on the latest 'iPad 5'... "No more messing around with user-editable files, documents, folders, or any of that rubbish clogging-up your computer. Everything you create and all the ideas you have just get automatically uploaded right into our new personalized App-store for safe keeping, and we allow you to access those files from any device you log into..." (for a small fee).
Let's not kid ourselves. The computer tower is still the professional's tool of choice - even Mac mini is nothing if not a mini tower. Personally, due to finances I have to resort to the most powerful iMac available (and I'm glad it has some considerable power at least). However, I would go for a proper tower anytime: Processing, RAM capacity, bussing, cache, general architecture, expansion, sturdiness, you can keep it separate and cool in an enclosed area (you don't even have to hear it), your desk is much emptier and features much better monitors (that can pivot for those 50-60 stave-scores, especially now that Sibelius features a Microsoft-type ribbon - brrrr - wasting even more vertical space...) without the iMac being in the way, etc. etc. etc.
Now if Apple can reduce the Mac Pro power and flexibility to the size, say of that beautiful cube they had brought out all those years ago, and call it Mac midi(?), then maybe we can all say goodbye to the Mac Pro without any withdrawal symptoms. Until then, we can only hope that Job's legacy, and the new top brass at Apple won't be entirely pre-occupied with how to stimulate and satisfy the average 19 year-old cheerleader's needs...