graeme_p - 8:32 am on Mar 18, 2010 (gmt 0)
It puts all the wikipedia in one place (research) while providing a top page for wikipedia and all the rest is out of sight for the serps.
As far as I can see this is in addition to ranking wikipedia highly in the SERPS. For the searches I have tried to confirm its across topics, Wikipedia is usually in first or second place for all of the. I do not see how that is "less Wikipedia" - is it that Bing ranks Wikipedia lower for particular topics/niches you tried?