Related to the new Cloner plugin. A very valuable variant of the plugin would be to allow cloning of a sub site and being able to move it to a single WordPress install or to another multisite network.
InfiniteWP for example can clone a whole WordPress installation, network or non network. But is cannot just clone one sub site and move it to a single WordPress installation or to another network.
Even if the designation needed to have the proper themes and plugins added first it would be an awesome ability to be able to stage a website on a testing network and then easily move it for a client after it is compete.