I'd love the idea of sailing in a huge ship, but I don't think it would be achievable in Minecraft vanilla. It could certainly liven up adventure maps, but unless it was constructed with mass amounts of wood, and required a crafting table-like structure to build the boat...
Actually that could work! Craft a dock or something similar, and give it a ship-building GUI. Then you could craft individual pieces and put them together in the dock. As you add pieces, they render in-game, rather than having a hand-held version which you plop down in the water. When it's finished, it starts bobbing around and you can pilot it :tongue.gif:
i hope notch reads ur reply
that would be a great easy way to build a perfect ship