I remember the thread, but I don't have any x10 cameras so it's not really available to me anyway. It does seem like x10 wall warts could be useful for some applications but probably not enough for the owners to build a line of them for various voltage/amperage combinations. I could see using something like that for an Arduino or router or some other device that might lock up and need resetting. Or, maybe a sprinkler controller if you wanted to turn it off remotely for some reason (rain, winter, ?). Or, as you suggested low voltage lights. But, It's really not all that difficult to install a controlled outlet, so that's most likely what I would opt for in general.