Hi all -- I have written to 23andMe to ask whether a person who orders their new $99 Research Edition (a limited version of the test) could later upgrade to the full version, and if so, what the cost and procedure would be. I'll keep you informed as to the answer!

I am also willing to share with anyone interested - thought I had left a message to that effect, but do not see it - am in 23andme as Carol Head.