You can't quite use the numbers for halo 2 as a guide for xbox sales though. Most people who bought halo 2 would have also bought halo. Whereas halo 3 is the very first halo game on 360. I imagine more people will have been waiting for it.
Will the 360 regain the lead? That's a tough one. I think the wii is going to see a pretty considerable sales boost. Europe has super paper mario and my sims coming out before halo 3. Japan has mario strikers charged. America has my sims, metroid and a dance dance game.
I do think people are under estimating halo 3's impact though. There have been 6.75million 360's sold in america so far. Halo 2 sold 6.48million copies there, so unless every single 360 sale has been to a halo fan there are still a lot of sales left. Polls have shown that quite a lot of 360 owners aren't people who owned an original xbox. So I think there are still a considerable amount of halo fans waiting to buy the 360.







