Notch has come a long way with dragons since their first mention - what was once a blank, grey creature has become something incredible. Sporting some incredible detail (including a serious upgrade to the wing design from the first model), flight and the apparent ability to destroy blocks that it flies through, the dragon will certainly make waves when it finally hits the game!
Recent news also suggests that dragons will be SMP-compatible! A realm for the Endermen, dragons, enchantments and potions - what will come next? Check in often to find out!