i see a bot on bleutrade, fairly easy to push it to the programmed limits on the spread
Cryptopia arbitrage bot (i am guessing) is part of the Cryptopian experience. Very fast, and this helps tune the UNO based markets to the
BTC spot rate. Also think team Cryptopia plans to arb all the markets [bittrex, polo, btc38, bter] for you.
If this is the case then Cryptopia is very handy for posting support and resistance positions, because it will be actively seeking the best BTC spot rate (bittrex); however Cryptopia will likely hold claim for best spot rate for uno/ltc, uno/doge, and uno/ftc ... so naturally it will narrow the uno/btc spreads there too. thus, bittrex will dominate less on spot but will still be the preferred exchange for trades of large amounts.
The other exchanges are great for posting chucks of lower support and higher resistance. (spreads the wealth and risk around).
c-cex is very interesting for testing a $usd market, and Cryptopia just added EDRC (and if not a scam) is claiming to be a dollar priced coin ... but their literature is vague, some HongKong tycoon is backing it, thus extreme caution/skepticism ... long story short ... UNO is positioned for 2 $-markets!
in general i find bots annoying at this level, but as the UNO market evolves ... yeah we will need to employ them ... so keep looking ahead ... it is 'programable' money after all