While in the short run this may seem possible, in the long run it is difficult. Bing relies on Facebook which only has information on how users behave online. Google on the other hand Android, which when embedded in all the devices can provide both online and offline user preference. More <a href="http://truvoipbuzz.com/2011/05/google-android-everywhere-world-domination/" rel="nofollow">http://truvoipbuzz.com/2011/05/google-android-everywhere-wor...</a>
Facebook can actually be (to use the cliche) the Google killer.Leveraging user preferences to give results is as revolutionary as Google's page rank algorithm.Combined with Bing,in the long run this could be a powerful tool as more and more of the world goes virtual,going deeper in facebook and e-commerce platforms.