Rumor : Lumia 800 to be launched in US with LTE and Tango

We have an interesting piece of news here. The Verge reports that an LTE version of Lumia 800 is coming to US. Nokia is in talks with both AT&T and Verizon. WP7  Mango however does not support LTE. So Nokia might delay the US launch to late Q1 2012 to launch and launch Lumia 800 with Windows Phone Tango and LTE radios on board.