Finally, I made two of my computers work with my Logitech diNovo BT keyboard/mouse/num pad work in 6.10. I was fallowing several guides like this https://help.ubuntu.com/community/BluetoothSetup and perhaps some other posts in Ubuntu forums. It was not easy when I started but it looks very easy now that it woks. Can't confirm if this is working on Mac. Note that when you unplug and plug back in your keyboard it will probably disable bluetooth and it will say something like device not recognized when you try to use bluez-utils. So have a spare keyboard and mouse plugged in to edit your configs and search/connect your BT keyboard/mouse.
Though it would be nice if BT was easier or more obvious way of configuring, I think some of the problems here could be fixed by following the Bluethooth Setup guide. Don't sell your bluetooth! -- Bluetooth Mouse and Keyboard Broken in Dapper/Edgy/Feisty https://launchpad.net/bugs/32415 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs