Blockstream to Launch First Sidechain for Bitcoin Exchanges

[cryptog]

http://www.coindesk.com/blockstream-commercial-sidechain-bitcoin-exchanges/

Could it be integrated easily with B&C Exchange, if needed?

[mhps]

The possibility of using B&C exchange to sychronize order books across exchanges is briefly described here

[Discussion] Additional features we want for B&C Exchange

If an existing exchange gives B&C order book by the side of its own order book, and provide a function of "best price" to execute the user's order at the best price of the two order books. This will allow users of the existing exchange to take advantages of B&C and benefit B&C by providing volume and a relevant order book. If many exchanges do this, B&C with its open architecture could become a hub for interexchange arbitraging

It implied that B&C is used to move funds between exchanges.

[cryptog]

interexchange arbitraging

right. With lower fees, b&c is supposed to be able to offer a better price for any pair. Could b&c become the cheapest exchange out there? If yes, that is huge.