Don't know exactly when this started, but at BTCC DAX you can trade (futures?) of the forked 1MB/BTC for a price of .8 BTC and the forked 2MB/BTC for the price of .2 BTC. And it appears that there's buy and sell bids at various prices.
Really interesting gamble. Anyone know if an American sending BTC to BTCC DAX is considered to be sending funds offshore?
Also, can this be an early indicator of the chances of success for either chain?