redstone
There are many many ways how you can use redstone, and the newly "invented" thing, pistons. However, it's not perfect.
lets discuss future items and ideas, on how the redstone thing will upgrade.
my idea:
blocks that function like redstone, so instead of trying to hide the redstone behind a wall, the new block could function as the redstone AND be the wall.
-also then if you combine for example a cobblestone block with redstone (workbench), you get... "Redstone Cobblestone" which looks like cobblestone, but can function as redstone. so it's completely invisible. (interesting idea lol)
/discuss
Like redstone that looks like stone?
thats stupid, just put redstone down one block, its easy.