So far, Brazil sneers at the attempt:
Brazil said the case had no basis as the current government, led by Roberto Micheletti, was illegitimate.ICJ ruling are, on matters where both parties are not in concord as to filing the case, pretty much just beautiful words on clean paper. That said, anything that would make it less comfortable to be assisting Zelaya would be a win of some kind for Honduras.
"The de facto Honduran government has no legitimacy to lodge a lawsuit at the International Court of Justice," a Foreign Ministry spokesman in Brasilia said.
Here's hoping for a quick provisional judgement.