Did you know Powerset’s Wikipedia search and innovative interface is available in Bing? It is the reference vertical. For some reason I hadn’t noticed this even though there were some announcements. The original word went out on July 27th but there doesn’t seem to have been much reaction.
The connection between Bing and the reference vertical is via the ‘Enhanced View’ link in the Bing SERP.
The full Powerset functionality is currently not available in the Bing version – most visibly missing is the ‘Factz’ functionality which provides the triples that the NLP engine finds in the page (though I note that the current version of Powerset now presents these in a tag cloud style interface which I don’t really care for:)