All I can say is good riddance to the "3rd best driver in F1" (according to Ralf himself at the start of the season)...
Given that his ex-boss at Toyota is already working for Force India and that he recently said (more or less) "if Ralf comes here I quit right now", I think Ralf's chances were very slim at FI, even though he knew one of the new owners (which is probably why he still got a test drive)...