I just did a search for "greenguy" on each & I think that Bing might be crawling Google for results. The reason for this is....
Greenguy on Bing
Greenguy on Google
Both have my domain in the top 2 spots. Google has always listed my main page right below my index - not as another page on that domain, but as a separate listing.
Bing, on the other hand, did not have my domain listed until the 4th or 5th page the last time I looked (couple months ago) Now, they have my index & main page listed the same way the Google does.
It seems very strange that Bing has updated my listings by matching the same oddity that Google has had for me for the last 2 years.