The other ones I know of are the you couldn't pay your rent ending, one where you win the Seiyuu awards but don't have a lover, and finally the one where you have no lover and you lost the Seiyuu Awards. I still don't know what the last one is though!
I suspect strongly that it has to do with Fundashi but that nobody can get it yet because they accidentally put his birthday on a day when you couldn't go see him - if so, I'm looking forward to it! :D
