Reading through the other details it seems that the Solution and Product Forums community are a port (and continueation) of the old forums.hds.com/ area. So although I did not use the old forums much the intended purpose of the new area is probably quite clear to those who did. What I am unclear about is the purpose of the Hitachi Developer Network community as the brief stated on the front page sounds similar to that of the Solution and Product Forums to me.
I am not asking for an absolute ruling of these topics go here and these ones go there; I just want a vague idea of what the differentiators are?
Maybe I am missing something or maybe this has already been covered elsewhere?