The other day I blogged about the continuing debate over Homo floresiensis, the possible species of Homo. I mentioned two recent papers that challenge the proposition that the Flores specimens constitute a new species: Obendorf et. al.'s suggestion that the specimens are Homo sapiens who suffered from cretinism and Berger et. al.'s report on a new find of small-bodied remains on Palau that suggests the Flores specimens might have been Homo sapiens who exhibited physiological dwarfism. The anthropoligist John Hawks has now examined the Berger paper (which he peer-reviewed for PLoS One) and written a detailed blog entry on it. I can, by the way, highly recommend Hawks, he certainly knows what he's talking about.
See also: SciAm Observations Blog's piece on Berger et. al.'s paper and National Geographic's article.