When it was published, I was inspired by Rodney Thompson's "Adapting the Lich-Queen's Beloved" article on DDi. The article goes to describe the author's experiences converting a treasure of an adventure from a (slightly) older edition to 4E and the benefits thereof. The experiences described felt very Fourthcore to me, very much in line with the kinds of adventures I like to run and play in. If you haven't already, please go check it out, as well as the link to the original 3rd Edition adventure. After reading it, I did, however, find myself a little disappointed in the lack of full stat blocks and enough details to really run the adventure in the 4E milieu. I imagine Rodney did what most of us do; print out what you got and wing it! That is a fantastic methods, which often leads to a lot of improv and creativity, but that's not what I wanted.
So when thinking about things and reading the original Lich-Queen's Beloved (LQB), it struck me as a perfect basis of design for creating the capstone to wrap up my D&D campaign. Hence, I have developed a fully written up 4E D&D conversion to LQB, taking many cues from Fourthcore in general and the Fourthcore Armory specifically, going so far as to develop Rumor Cards for my players.