BusinessWeek reports that Apple and Google are having a serious row:
"Amid an accelerating rivalry with Google, Apple is discussing ways to make Bing the default search engine on the iPhone".
And the reason? It seems that Apple will get more money from Microsoft than it gets from Google. Apple also wants to cut Google off from some of the search data, which as we know, is worth a lot of money, too. It's also possible that Apple wants to develop its own search engine, and then they won't need either company.
Read more on why Apple might dump Google