This is the Mod of Ender! It adds in many things, including the Ender Creep, The Pickaxe of the End, a whole new biome, and three types of chocolate. If you were ever fond of the Enderman or Ender Dragon, this mod is for you. Also, this mod is in Alpha, so there may still be a few problems.
Uh-oh, this thread isn't working quite yet, hopefully I will get it to soon.