No service at the moment , however I have had my eyes out for this a while now. In the mean time however if you have mobile email you may want to set up accounts with www.alertfx.com and set up and receive alerts to your mobile.
You can get streaming real-time FX quotes on any Palm, Pocket PC or Blackberry from Hillcast.com. It streams spot prices and cross rates to your mobile device.
personally i just type www.oanda.com into my WAP , and a big load of text appears, but if you scroll down towards the bottom you can make out the prices. they are a bit jumbled, but you can work out what is what.