Awesome job so far! Can't wait for integrated trading (especially for OKCoin futures). Also would love to have multiple charts on one page...multiple exchanges would be ideal, but even just multiple timeframes from the same exchange would be beneficial. While I'm wishing for things, stochastics would be great too.
Integrated trading is being developed right now, and there will be a private testing group in the next month or two. I'll send an email about that to the user base so make an account if you want to be part of that group.
On your candlestick charts, it seems every candle open is exactly the same as the previous candle's close. Shouldn't it be the first trade that takes place in that candle's time? Sometimes there are gaps between the last traded price in one candle and the first traded price in the next candle, but your charts don't show that.
I designed it to work that way because I assumed what you describe was developed for the traditional financial markets which opened and closed every day, and therefore didn't always have a continuous seam of trading between each candle. Perhaps my take on it is traditionally wrong.
Do you find that to be a flaw? I recently bought a book about Japanese candlesticks and I'm realizing that sometimes analysis of candlesticks involves these gaps between close/open prices, so I'm not too sure myself anymore. It would be easy logic to change if I wanted to, but not retroactively; a lot of my historical data would still have this characteristic.
Let me know what you think, it's been on my mind lately.