Does anyone know the significance of having a female-typical digit ratio, or is that just pseudoscience?

 Andonis Longos asks over at CDL:

"I had always assumed that everyone had fingers like mine, that the index was always longer than the ring finger, and had no idea that many people (supposedly most men) have fingers of the opposite length. So I then realized that I basically have a "female-typical" finger-length. Since some seem to claim that this corresponds with pre-natal hormones, I was wondering if anyone could comment on this or if it is just pseudoscience."

Some answers about finger ratios and being transgender here!