The NY Times offers a helpful, if not altogether informative, report on the discovery of several skeletons that appear to be those of transitional life forms between fish and amphibians. There's enough here to make the claim credible: a swiveling head, limbs in the making, and the like.
So what does this all mean?
Well, it means that a lot of young-earth creationists need to stop saying that there are no transitional forms in the fossil record. There have been before, and this one is a doozy. Even the Times's article cites a creationist web site that makes the now-even-more unsupportable claim that there are no transitional species.
Second, this discovery adds to the reasons that young-earth creationists need to think about becoming old-earth creationists. There's nothing lost theologically, lots gained empirically, and perhaps most importantly, we can get over the idea that to believe Christianity one has to stop believing what one can see for oneself.
Third, anti-theistic evolutionists need to realize the limitations of their discovery. Granted the likelihood that these skeletons are those of life forms that could be termed transitional, we still have no notion of the mechanism that brings about such changes in the patterns of reproduction from one generation to the next. We do not resort to the "God of the gaps" when we posit that something like the present complexity could not arise by chance. Rather, we observe that with every discovery, the gaps become bigger, less likely to be closed without something as big as God in them, and so rationally asking for such a solution.
But this last point won't get discussed. Old-earth creationists and ID proponents (basically the same folk) will get lumped together with the young-earth creationists in the rhetorical blizzard that will follow this discovery. We urge readers to wear warm clothing and carry a compass until the blizzard passes.