Also, are they going to have smaller collision boxes rather than having the cables taking up one block with a large amount of space around it. Bit like Buildcraft pipes would be good.
Alblaka replied to this early on after 0.9 was released, saying he didn't think it was possible. When someone pointed to the fact that buildcraft pipes were fixed in 2.1.1, he replied saying he might talk to Spacetoad to see how he did it.
I agree, it'd be nice if they were smaller hitboxes.