the problem with this is, everyone I have talked to believes that Yahoo was the much better search engine than Bing
End of an era. Yahoo was the Google of its day, but just could not innovate. Here's the full story here http://www.pcworld.com/article/169286/yahoo_search_rip.html
I think its a great move as far as market share is concerned, and in the end web users and web publishers will be benefited from this, which is a great aspect to watch out for in near future.