yes bing can take over google... they just need to open porgrams like webmaster tools , adsense adword and all.. and bing is at no. 1
I think Bing will eventually be bigger than Google. There are too many privacy concerns with Google and it is only a matter of time before the media turns against them (as they have done with just about everything else they have ever reported on) when this happens a lot of people will stop using google (I already have)
What I am currently seeing with my own sites is that Bing is bringing over users who actually want to see what my site(s) have to offer. These Bing visitors are actually spending more time, browsing deeper, and (on my ecommerce sites) they are making purchases. This shows that Bing's algorithms for ranking websites is actually delivering content that Bing users actually want. This is invaluable to a site owner who sells products online.