Their not exactly clones like the ibox range where but they are close, close enough for images of the xp1000 to be patched and used on then. The Vix Image is an example of this.
But as you know they are officially supported by many of the open teams OpenATV as an example.
believe it or not as @Ferret has explained above quite clkearly but yes you can still get clones of these which makes me chuckle when you think they are made by a clone manufacturer that produces an original box which in turn gets cloned by another clone manufacturer LOL
It is if you use officially supported images which at the moment are OpenATV,OpenDroid and Italysat these 3 you can safely do online software Enigma2 image updates without fear of bricking the box