So 3 exchange operators will offer Bitcoin. The CFTC said it will help to monitor the Bitcoin markets (how you are going to do that is a different story
).
Anyway, big step for Bitcoin to move into the mainstream of finance in US, will now most probably be purchased by investors who would not buy Bitcoin themselves without these exchange operators. Banks will now have clients who will want to buy, there are hedges too, it will become easier in US, this is a fantastic news for the holders we are.