I've updated the BIOS to a new version, something with 03, then did a fresh install of Ubuntu Gnome Shell 12.10, added the Gnome3 ppa and realized, that the Bluetooth status is saved now.
I've updated the BIOS to a new version, something with 03, then did a fresh install of Ubuntu Gnome Shell 12.10, added the Gnome3 ppa and realized, that the Bluetooth status is saved now.