The research system.
It was decided in the old forum that devices would require technology that would require research.
As far as I can tell, the only topic about this has died due to us moving to the new forum.
...well, search function has revealed that there actually was another old topic with a quite raw idea by Mackeroth that died after 12 posts [url=http://futurecraft.forumotion.com/t273-research-my-plan]link[/url]
Here is my research idea as of the latest state of discussion (I regularily updated the OP)
PS: Some moderator please sticky this, it´s a major part of the FC-plan after all and didn´t have enough discussion to be implemented in its current state at all.
In fact, Mackeroth even forgot about it in his epic to-do-list of epicness.