Genetic Genealogy: More Than Just a Hobby?

At VentureBeat, David Hamilton points out the fact that Ancestry.com has just launched a genetic testing service, adding to the enthusiasm for what low-cost sequencing and genotyping might be able to do for tracing one's genealogy. (Shh...don't tell Watson about the fact that, according to tests, we've all got African ancestry.) Hamilton echoes warnings that might tame the hype, or at least make us better consumers, saying, "Like anything else, of course, you should probably have a good sense of what you’re getting into before you start forking over hundreds of dollars for genetics tests."