Apple got all the headlines with the unveiling of iOS 7, but there's likely plenty of celebrating going on at Microsoft headquarters. When iOS 7 hits, it will be a big boost for Microsoft's struggling mobile efforts.
The big win for Microsoft in iOS 7 is that Bing will become Siri's default search engine.
If you ask Siri a question and Siri can't find the answer, it searches the Web for the answer -- and Bing will deliver the results rather than Google. Currently Google is Siri's default search engine.