This is an interesting one.  I have come across this same question several times on SF based boards.  Many gents have stepped up to ask this question.  I have never heard that it is a scam NOR has anyone ever said to have seen her.  I do not know what to tell you.  I have emailed her myself several times and never received a reply.  I can also tell you that the 209 area code is new.  Her previous was 510 I believe.   My gut feeling is..something is not right here.  Good luck.