c0rd on 14 December 2008
It would stop working because... you won't be able to point at all. Not because it uses just the pointer.
It needs the accelerometer to determine what's up and down. Without it, the remote cannot tell whether it's upside down or not. I don't think the Wii Remote has any gyroscopes in it, the accelerometer is enough to determine things (thanks to gravity). I'm pretty sure the gyros are only added in Motion+.
