I am interested because it says to me that statically typed, non-interpreted languages are far from dead. The fact that it is community developed and open source, though not unique in this regard, is a plus. Going by their links page it seems like development and user is pretty lively, at least as much as other languages/tools like Ruby/RoR.
Despite my efforts to remain open minded, I do still harbor a pre-disposition towards static, C-like languages which may also explain my curiosity about D. There is a package for OS X, so I may have to give it a whirl, just for fun and to be able to do a more in-depth comparison. I’ve been thinking about finally plunging into one of the current popular dynamic languages, like Python or Ruby, to broaden my experience and perspective.