African Eve?

I have found the "African Eve" hypothesis quite attractive. It seems to support, albeit indirectly, appeals to human equality; if we share a common ancestor then we are all one family. But it appears the science isn't necessarily that clear:

Just up at the Design of Life blog: African Eve: "Was one woman who lived 150,000 to 200,000 years ago the ancestress of all of us? Science may not be sure, but pop culture is.

Part One: Our Mitochondria: A piece in the puzzle of our origins?

Part Two: What does our mitochondrial DNA say about human ancestry?

Part Three: African Eve - when pop culture falls in love with science"

(Via Post-Darwinist.)