Thanks to 2005 Boards member ApocalypseThruster for giving us the heads up of his sighting of the new Transformers EarthSpark Cyber-Combiners Twitch & Robby 2-Pack at US retail.
This new sub-line features Transformers characters that can transform into alt mode and can also form either torso or legs of the combiner mode. The human partners can not transform, they are able to form any combiner torso or legs. This 2-pack was found at a Target in Mission Valley Target, California. The second 2-pack with Bumblebee & Mo should be out too.