We have all seen what Nathan Adams is cooking up for Minecraft 1.4, but what is Jens working on? It turns out he is working on something that will change the way multiplayer works - invisibility. We actually don't know yet if it's a potion but it's safe to assume that, based on the potion-like effects seen on the player. Granted the particle effects give away the player, but let's hope your opponents either have Particles off or have a fear for the Invisible Man.Source: @jeb_