Pretty historic move for a currency in a single day - don't know if that's ever happened before. Unsurprisingly, there's been fallout:
FXCM, Brokerage Hit by Swiss Shock, Gets $300 Million From Jefferies Owner LeucadiaÂha - Bloomberg
Swiss Franc Trade Is Said to Wipe Out Everest’s Main Fund - Bloomberg
I guess there'll be some more surprises in the run up to March....