Use cloner plugin for staging main site for having a dev site


I was so happy when i saw you released the Cloner plugin, but when i saw this not could handle the main site i could not use it anyway.

Could it be possible to change the plugin to handle the main site also?
What i want is to have a dev site, a copy of my main site/everything, where i can install updates, when I'm sure everything is working, then i can publish to "live" site.

Is this something could be done with Cloner plugin later on or did you think it could be interesting for you to make such a plugin?