I think its about time that we realize that Google is no longer the far and above better search engine for what most people search for. News, celebrities, sports, recipes, etc... these are all low hanging fruit when it comes to search. I have no doubt that Bing is on par with Google when it comes to these categories. I'm sure Google still wins massively on the "long tail" search, but these types of searches are only important to a small percentage of users. If Apple suddenly changed their default search to Bing (perhaps also removing branding), I don't think anyone would care besides the techie folks and the bloggers.
I personally believe that long tail searches will become even more important in the future with users entering their search queries via tools like Siri and Google Now.
I do not have any hard facts to support that subjective opinion, but to me it feels a lot more natural to speak out a query as a full sentence than to say a few keywords.
