I think Notch should add The Aether for a balance. It would be more fun if he did because The Nether is no fun in Survival mode, it would make it worth going to The Nether.
Im pretty sure this has been suggested before, anyway the problem with aether is that it probly has more items then the overworld and nether combined. Its a great mod though
The Sun rises in the North!Now these points of data make a beautiful line...