Annoyingly, as karmic has mostly switched to Upstart, it does not include a service manager. While I hope that the gnome service-manager will be updated to include support for upstart soon I have, for the interim, written a very simple service manager.
Be warned: When I say "very simple" I mean "very simple, noob unfriendly, and potentially dangerous". While it should not harm your computer, I make no guarantees because it is my first PyGTK program and was written in my spare time over a couple of days. A word of warning, the code is very messy and inefficient (understatement).