Yeah I've seen a few come off my personal list in recent years:
Delta Command (NY Warriors)
And now of course Eeekk!
There's rumors of a Taito Black Widow and Vectorbeam Scramble board being around, I don't know who has them or what their intentions are, and supposedly a full Vertigo game is in the hands of a former Exidy employee but I guess he just wants to be left alone about it.
Also heard a rumor about the source code for Marble Man turning up, anyone hear anything about that?