I've always been a fan of alignments as a way to guide roleplaying, but not as a mechanical aspect of the game. I like that 4e removes alignment from game mechanics, and I I like the idea of a separate alignment for "neutral" in the sense of balance between forces, and "neutral" in the sense of "I don't really care one way or the other". I don't like that 4e has the weird sliding scale it has now. I feel like it should have either ditched alignments completely, or kept the full matrix, possibly with the addition of unaligned as a 10th alignment.
In my home game, I use the proposed 10-alignment system;
Lawful Evil, Evil, Chaotic Evil
Lawful, Neutral, Unaligned, Chaotic
Lawful Good, Good, and Chaotic Good
In my home game, I use the proposed 10-alignment system;
Lawful Evil, Evil, Chaotic Evil
Lawful, Neutral, Unaligned, Chaotic
Lawful Good, Good, and Chaotic Good