Programmatic
Steampunker
How about a device that allows you to join wires of different colours together - maybe red wire goes in and green comes out with teleporters on each end. This would make it less of a headache when you have a lot of wire in one place for example around a large teleporter hub. At the moment I find myself having to carefully plan the colour and path of wire, often having to make huge detours around existing wire to avoid overlapping with other same wire colour circuits. The new yellow wire will help but not completely alleviate this problem.
Well, you could technically do this with the new OR gate, since the new gates can take any number of inputs. Just hook one wire to a logic lamp, and the OR gate will forward the signal.