Deskbar plugins can have a "More..." button in the plugins list. The beagle-live plugin already detects if beagled is running, and allows the user to start it via a dialog popping up when "More..." is clicked.
It would be easy to patch deskbar-applet to have beagle-live popup a dialog asking whether the user wanted to install beagle directly, if it is not already installed... This would have to be an Ubuntu specific patch ofcourse. -- Require python-beagle to get beagle live search working, but the package only recommend https://launchpad.net/bugs/61334 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs