Comment 1 for bug 428111

I have the same Apple Wireless Bluetooth mouse, it pairs okay, but does not control the mouse after a pair/bond/trust.

It appeared to get broken when trying to fix a wheel mouse issue where horizontal scrolling was inverted, see here:
https://bugs.launchpad.net/linux/+bug/291408

According to
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
the commit for this was done on Wed Jun 10 10:25:56 2009 +0200
the problem is that they somehow seem to have removed all reference to the Apple Mighty mouse Wireless now.

According to:
http://bugzilla.kernel.org/show_bug.cgi?id=13935
A patch was applied on 2009-08-26 11:20:50 to kernel 2.6.31 (I'm not sure what release) to re-introduced the Apple mighty mouse wireless. I have no idea when/if this propagates its way to the generic or ubuntu kernel, and indeed there is no mention of this in the changelog here:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.31
So maybe a patch hasn't been applied as bugzilla 13935 suggests?

Anyway, my mouse is still broken and I am running ubuntu 9.10 alpha 5 with kernel 2.6.31-10.32-generic

If I can test anything for anyone, or provide any more info I am willing to help.

Thanks, Dion