IIRC, the big thing with Fast Forward was one book that contained like 30 monsters from the MM2 (their explanation was basically: "We saw that it had the OGL in it and assumed it was all OGC, not just those two monsters"), but there were also a couple of books where they used non-OGC in a less blatant manner, like referring to Lolth or Gruumsh. The name Drawmij was also mentioned, but Jim Ward mentioned something about considering that name his, and being willing to fight over it.