Wiimote Project

Using just the accelerometer data (no IR) is it possible to calculate the angle the Wiimote is being held at while swinging it?  I have found various trig calculations on the net but they all seem to break down when the wiimote is in motion.  I am trying to determine the release angle of a simulated disc throw so that I can plug the angle and force values into my calculations for how far the disc should travel.  Maybe there is a better way to do this (without using IR tracking)?