[jdh]

Well, you can set an alarm for a task based on a time, so the due time from OF could be reflected somehow in the alarm time setting.

Again, however, this would only be practical on the desktop and not the iPhone, since iCal tasks don't show up on the iPhone. Ergo, the alarms feature there would not be particularly useful unless you create your OF actions as calendar events (appointments) rather than tasks. I don't think OF can do this natively, although I seem to recall that somebody posted an Applescript around here somewhere that could do this.