I' ve been messing around with the StarTrooper example. In the example it assumes that the device is flat (paralell to the ground). I'm wonder how I would go about changing it so that it assumes you are holding it perpendicular to the ground. I tried changing

var accelerator : Vector3 = Input.acceleration;

if (horizontalOrientation)
{
    var t : float = accelerator.x;
    accelerator.x = -accelerator.y;
    accelerator.y = t;
}

to

var accelerator : Vector3 = Input.acceleration;

if (horizontalOrientation)
{
    var t : float = accelerator.x;
    accelerator.x = -accelerator.y;
    accelerator.y = t+.90;
}

I though offsetting it by 90 degrees would work, but it behaves strangely. Any ideas>