More important, this announcement means that real "professional" services, with experience in tradition FX/Trading are entering the market.
This is a good thing and indicates a maturation of the market.
+1, but bitcoin doesn't have enough market depth for big players (yet). I'm curious about what will happen in the coming months: which major players will jump in, etc.. I concur these are 'generally speaking' good news but we still need to see the real impact. A single "big WS guy" could crash the whole market easily since a market with this depth is like a toy for them...
*Popcorn*