It would be like finding out olympic class weight lifters tend to also be olympic class marathon runners. Or the best commuter vehicle and best 100 ton mining truck happen to be the same vehicle.
Maybe it's not available outside the U.S.?
Bing's results are way less relevant to me than Google's, but Google does have the advantage of a lot more personal data, and a specific subdomain for my country (.uy) which often returns more relevant queries (OTOH for programming I often have to force the U.S. website).
That's the reason I don't use DuckDuckGo either, the results are vastly inferior for my use case (even though I want to like it).
(Note: I work for Bing.)
Competition is a good thing, I really hope you can improve on Google's results.
I do happily use a lot of other Microsoft products, so I know you'll give a good fight :)
Here's what I might type if someone asked me to try their search engine: "Miley Cyrus". The funny thing is that I'm not sure if I would like Google's "Miley Cyrus" results better than Bing's. I'm not sure I could tell the difference.
Here's the kind of stuff I actually need to work well during my normal day: "xcode 5 warning signature expiration does not match provisioning profile"
The second one isn't a real XCode warning, and that's kind of my point. I can't generate compiler warnings from my head to test Bing. I have to see them on my screen first spontaneously. This means if I'm running a Bing challenge I can't possibly simulate the real world unless I'm given my own machine and a few hours at my leisure to run into these types of things.