The last time I heard the night only "O" beacon was in early April or late March, it was still up then and on 4103.8. It is an extremely hard one to get for me. I suspect, but do not know, it is probably still up, just seldom reported.
Edit: I just checked and as of 0435 UTC May15, 2010 it is still up. Center freq at this time is 4104.48.