IBM are involved with the Genographic Project, which is an attempt to "chart new knowledge about the migratory history of the human species", by cheekswabbing hundreds of thousands of people around the world.  You get swabbed, you get an id to access your history, and they get the consolidated data from the results.

My initial reaction was that I wasn't personally interested, but I am interested in the project overall, so when I was told they were doing an event in Adelaide on Friday at the Central Markets, I decided I'd go along and get swabbed (or have Arabella do it, since she'll be with me).

The deal is that the first 100 volunteers can be tested for free, so if you're interested now is your chance!