Useful for Xbox Resolutions -

If you have an interest in making one version of a game that conforms to all three xbox 360 standards, you can use the following to modify your bitmaps size, and position - and you only have to create one (720 for the below) version of the game!

/// <summary>
        /// Changes Size of Bitmap Based on Resolution.
        /// </summary>
        public Vector2 changeBitmapSize(GUIBitmap button)
        {
            Vector2 vNewSize = new Vector2();
            switch (Game.Instance.Window.ClientBounds.Height)
            {
                case 1080:
                    vNewSize = new Vector2(button.Size.X * 1.5f, button.Size.Y * 1.5f);
                    break;
                case 720:
                    vNewSize = button.Size; //Do Nothing
                    break;
                case 480:
                    vNewSize = new Vector2(button.Size.X / 1.77f, button.Size.Y / 1.77f);
                    break;
            }
            return vNewSize;
        }

        /// <summary>
        /// Changes Position of Bitmap Based on Resolution.
        /// </summary>
        public Vector2 changeBitmapPosition(Vector2 btnPosition)
        {
            //Vector2 btnPosition = new Vector2(596, 323);
            switch (Game.Instance.Window.ClientBounds.Height)
            {
                case 1080:
                    btnPosition = new Vector2(btnPosition.X * 1.5f, btnPosition.Y * 1.5f);
                    break;
                case 720:
                    //Do nothing
                    break;
                case 480:
                    btnPosition = new Vector2(btnPosition.X / 1.77f, btnPosition.Y / 1.77f);
                    break;
            }
            return btnPosition;
        }

implemented

button1.Position = changeBitmapPosition(new Vector2(596, 323));
            button1.Size = changeBitmapSize(button1);