No, I don't know anything concrete. But I do have it on good word, and reliable word that FXCM was not conducting "routine maitenance" when the market opened up yesterday afternoon...
Those idiots could have come up with something better than "routine maintenance."
You see, FXCM was Refco's trading platform before Refco hit the crapper. Refco made FXCM an ungodly amount of money. When the crap hit the fan with Refco, FXCM took a devastating financial blow, so bad it almost put them under. While with Refco, FXCM was actually a solid company that maintained rather ethical business practices and standards.
After the Refco debacle, FXCM quickly resorted to the games and trickery brokers have to play to make money in the forex game. FXCM has no real traders, they don't know how to trade forex to make money so the only way they survive is by stop hunting, screwing with the bank feeds, limit hunting, and "routine maintenance" events...