There is a new beta program at 23andMe called Ancestry Finder. This program uses the information from the survey on "Where are you From?" to map segments of your autosomal chromosomes to various nationalities. No time line has been given for rolling this out beyond the beta testers.
Some questions have been raised on whether this will be of practical use for Native American or African American testers since the number of persons from each group participating in 23andme is low. There is also some concern from European Americans who have long lines of ancestors born in America that the program will not give them much of interest.
It is hoped that those who have already completed the survey will be allowed to edit their replies to add information on ethnicity to supplement the location information.
A review has been posted at the Your Genetic Genealogist blog.