Nokia announced their North American version of Lumia 800 during CES 2012. The Nokia device running Windows Phone OS will be called Lumia 900. Nokia also announced Lumia 710 for T-Mobile, which will also be available in Canada with Lumia 800.
There is no word on pricing as of yet and the device will be released on AT&T exclusively in next few months. Stephen Elop did mention that Nokia will be “Aggressive” in the US market, we don’t really know what he meant by this as Nokia might be aggressive in pricing or their marketing strategies. We’ll just have to wait and see how soon and at what price the device becomes available.