Google's results are already pretty clean. Search results are heavily filtered (e.g. copyright, adult content) so I don't think Apple would filter more. If anyt

Google's results are already pretty clean. Search results are heavily filtered (e.g. copyright, adult content) so I don't think Apple would filter more. If anything, filtering more than Google could deteriorate results. But the SEO market would certainly change if webmasters suddenly have to appeal to more than just Google to be successful.