Canon messed up when introducing auto-ISO. When shooting in A mode, Auto-ISO will set the shutter speed to one stop slower than the focal length of your lens, with no way of setting minimum or maximum shutter speeds. This ommision completely kills the Auto-ISO feature for action still photographers. If you could hack the firmware in order to manually set a minimum shutter speed when using auto-ISO, this would make Auto-ISO usable again.
Issue #151 on hold