Heh, guys, let me tell you why the Moon is moving away... It's all about inertia. The Moon is heavy, too heavy for Earth's gravity. Like a swing - the Moon is swaying, and so on...
I think it's not just about inertia. If the Moon had been moving away from Earth since the beginning, it would have gone very far in 3.5 billion years. This started because of the Earth's pole shift. According to one theory about the demise of Mars, this is what caused the planet's death. During the pole shift, gravity became too weak, and the planet's atmosphere evaporated into space. Currently, the Earth is preparing for a pole shift, and gravity is weakening by very small amounts, but that's enough for the Moon to move away.