I know Yahoo Finance isn't a forex exchange but I did send them a request asking they add BTC to their Forex charts/quote system. I doubt they will, at least for a long time but it would be cool if you could get Bitcoin prices right there with other currency rates.

I'll be a little nervous when forex traders get their hands on bitcoin. From what we've seen it isn't hard to manipulate the price by using walls and holding sufficient bitcoin to artificially induce panic cycles. I'm pretty sure this is what pirate did until people caught wind of what he was up to. These individuals then priced him out of the market forcing him to default on his obligations.

An individual forex trader can shift millions in a day, the current market cap can't handle that without a wild ride. If the market cap grew to 1bn+, the affect of a million $ trade would be much smaller. In the longer term it'll help bitcoin, right now, I don't think we're ready.

Forex is, in comparison to bitcoin trading a decentralized system.

Our best chance is opening a forex exchange which happen to have bitcoins for trade. Then get recogniced and ask other exchanges for an interface.
Of course most exchanges are operated by banks...

you may can try binary option,or some broker also accepted bitcoin,but i never try forex on MT 4 with bitcoin currency,but i think it all not really safe,some of people here said that binary with bitcoin is aware from scam.

In my little experience I've realized 99% of forex trading sites are complete scams and do not allow you to withdraw your funds if you hit the jackpot.