> You can see the marketing already; it'll be Apple wading in on personal profiling and data capture with shiny marketing that points the finger squarely at Google. I suspect their search engine will be crap however, unless they are logging everything you do with your phone :-D
The difference between Apple and Google is that the former makes money by selling products and the latter makes money by providing free services, building profiles, and selling advertisements.
Even if Apple did start building profiles of users, their end goal would be to create a better user experience, get users into the Apple ecosystem, and sell them hardware. It would not be to directly make money from the search engine by building profiles and serving advertisements.
Personally, I would be completely fine with paying Apple a monthly fee for access to a fully featured search engine that doesn't profile its users.
Having said that, it's completely possible to build a good search engine without profiling users - for example, DuckDuckGo.