Frazer, I've got it working over my iphone,
The Settings are as follows,
It will ask for a passcode, this is a bit of a pain, as its a setting on the exchange server, with LCC is running, I would put the email password, and it can be set to only ask after 1 hour,
But be warned if entered wrong more then 8 times it will erase exhange mail on the iphone.