Aks HN: Bing's search strategy is different from MSN?

I understand Bing is from microsoft who until few days back was pushing MSN search. I have started using Bing and have realized that it doesnt really suck like MSN. I also read news about Yahoo and Bing coming together. I just wanted to know if the search algorithms used by Bing are different than what was used for MSN. Because the results are pretty good with Bing.