It seems that in this case there is a great deal based on interpretation of what is a "natural born" citizen, where in the Keyes' case, I believe it is asserted that 0bama was born in Kenya. Therefore in Keyes' case if the BC is presented and it shows Kenya, it seems more clear cut.
I think the SCOTUS would just as soon pass on all these cases. These are political cases and the court probably thinks there needs to be a political solution to them.