Gears of War 2 debuts to 2,100,000 Units Day 1

According to early retailer reports, and user polls, Gears of War 2 is shaping up to be one of the biggest Xbox 360 titles to date, putting it in very similar territory to blockbusters 'Halo 3' and 'Grand Theft Auto IV'

Using the aforementioned data, Gears of War 2 looks to have debuted to midnight and Friday sales of 1,400,000 units in North America, and 700,000 units in 'Others' territories. This would be roughly 20% lower, by comparison, to Halo 3's massive debut, which wound up with 3.8 million units sold it's first week on the market.