I have two bluetooth mouses, a Apple and a Kensington both have worked on precedent version of Linux and work on MacOS, both doesn't on the two new installation of Ubuntu 9.10
denis@a15p:~$ hcitool scan
Scanning ...
00:1F:5B:B0:FF:A2 Souris de DenisBergeron
denis@a15p:~$ sudo hidd --connect 00:1F:5B:B0:FF:A2
sudo: hidd: command not found