It tells Science magazine that features seen in the brain, feet, hands and pelvis of A. sediba all suggest this species was on the direct evolutionary line to us - Homo sapiens.

I linked this diagram to the What Home Looked Like For Seven Million Years discussion, last month. - http://ngm.nationalgeographic.com/2011/08/malapa-fossils/lineage-graphic

Along with this graphic reconstruction - http://ngm.nationalgeographic.com/2011/08/malapa-fossils/hominid-graphic showing what various hominid species are thought to have looked like.

There is also an article on the Malapa caves site, which can be accessed by clicking on "Feature Article" at the top of the page.

According to its discoverers, A. sediba's odd blend of primitive and modern traits make it an intriguing candidate for the immediate ancestor of Homo. "It's the ultimate look at a species in transition," says paleoanthropologist Lee Berger. "And it's transitioning toward humans."