John Hawks has a nice summary article in Seed on the recently published analysis of "Ardi" [ardipithecus]. It serves as a good corrective to a lot of the hype that has appeared in the press.
Check it out here. For more detail check out his blog here.
Lionel Tiger notes that the interpretation of what Ardi represents will invariably reflect current political, ideological, and cultural imperatives. He's right, of course. That's true of all scientific information -- we reinterpret it in light of our current concerns.