Well not totally gone actually, just 25% gone to be precise. Yahoo announced this week that 25% of its natural results are now coming from Bing, the first step of a planned transition (read more here).
Call me cynical, but is this going to make a difference on the way most SEOs work? somehow I don't think so as Google's dominance of the market means it will still remain the benchmark when optimising your site. And personally I've never been too impressed with Bing's results...but still, it is a big change in the industry so let's keep an eye on things over the next few weeks/months.
How do you feel about this transition? is this going to affect your work?