I think it would be an interesting feature if some sort of consanguinity index calculation could be performed for a given profile's known ancestry. A lot of times, that figure gets underestimated or poorly calculated in royal bloodlines - for example the listed consanguinity index for Franz Karl Joseph of Austria-Habsburg, Archduke of Austria is stated to be 16.59% @ http://www.thepeerage.com/p10129.htm but given that he has only 393 different ancestors in 10 generations with no unknowns I think that is a significant underestimation of his true consanguinity index. Even outside of royal bloodlines, some type of consanguinity check could prove useful in terms of identifying how much genetic material has been recycled in a given family.