I am sorry. The fact is that HBS has a tradition to send out interview invitations for doctoral applicants by the second weeks of January. This year a few students have already received the interviews from HBS in a number of sub=disciplines, such as marketing and accounting. So it seems that the school is following its tradition.
Too shame that I did not get it. Probably because of my very low undergraduate GPA.
Anyway, it is good to try. Now I am just anxiously waiting for the offers from other schools.
Good luck to all.