Initially, I thought no way, but then I read that one of Sheldon Brown's bike used has biopace.
I'm trying to do a very budget FG and have a biopace chainring. I have been riding "SS" in the 42-16 for a little while now and think I'm ready to go fixed with that ratio. I had planned to get a new chainring, but if I don't have to then I'm that much better off.
Also, I really don't want this to be a discussion about how pathetic biopace is, but more informational as to what problems I may run into or whether or not it will work at all.