CoD: WaW Wii is tracking better than Metroid Prime 3

[Chrizum]

Metroid Prime 3 is set to sell between 1.8m - 2m units eventually.

I think Call of Duty: World at War will slightly fall behind that number, but it should still have no problems to sell around 1.6 million. That's a big succes for Activision no matter how you slice it.