The new Bing introduces a brand new information architecture with a three column design that focuses on bringing you information from the web to help you take action and interact with friends and experts without compromising the core search experience.
The bedrock of modern search remains core algorithmic relevance. With the latest updates, we are delivering the results you expect. Beautiful, relevant, results are the first thing you see. Instead of cluttering your results with social updates, we’re honoring the purity of the core web results making it easier to focus on the links you need to get things done.
I've yet to test it properly, so i'll reserve comment until then.