Like everything else.
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HAHAHAHAHAHAHAHA. No. Can you image the design on that? 5 results per page so it looks clean. Everything the same light gray font with 2 pixel width. Have the window be transparent so you can see a blur of your desktop. In fact, why have it in the browser? Make it a stand alone app! iSearch..no wait!...Search
see:
I never said it was a fantastic idea, just that it is a market I could see Apple moving into. They have the weight to do it.
We didn't think moving into maps was a great idea at first, but the Apple maps seem pretty good (from my usage) these days. I rarely if ever reach for google maps on my mobile device any longer.
in short, I don't count anything out of Apple's realm of possibilities anymore. The quality of such may be in question, but I wouldn't be surprised or shocked if Apple did launch a search service of their own. Apple likes to control their ecosystem, and search is a big ecosystem piece.