It makes a lot of sense, android and phones are a complement to their business. Android is simply a way of reducing the cost for producing more phones. Facebook

It makes a lot of sense, android and phones are a complement to their business. Android is simply a way of reducing the cost for producing more phones. Facebook while large doesn't pose a serious threat to "organizing the worlds information" once Facebook sells their social graph information Google will simply purchase it and use it to further optimize search results. Neither Facebook, nor Apple are real competitors to Google's core operations. Google is a much more serious threat to Apple with Android than Apple is to Google with iPhone. Facebook and Apple ARE threats to mind share, but that pales in comparison to a threat to the bottom line. Bing IS a threat also because Microsoft has a large stake in Facebook and could ostensibly find itself with preferential rights to Facebook's social graph. If Bing could integrate the graph into results first it could give them huge search advantages. Traffic from Bing also costs about half of what it does from Google.