woowww very good application for arbitrage users. I used to follow XRP/BTC arbitrage between Cex and Bitfinex and Exmo. It is all there. Great effort.
I will suggest to add local currency market vs usd. like Turkish Lira markets BTCTurk, Koinim or Indian markets. Because TL/USD and INR/USD may add additional arbitrage opportunity.
For example Turkish exchanges have a difference against to Cex or Exmo for both sites.
Anyway, very usefull tool. Will check when I am on computer and arbitraging....