Nokia’s first Windows Phone landed here in the States late last year, but part of me was hoping for something a bit… flashier than the Lumia 710. Nokia CEO Stephen Elop fulfilled that desire when he showed off the LTE-friendlyLumia 900 at this year’s CES, and now we have an officially release date to go with it. AT&T has confirmed toCNETthat their new flagship Windows Phone, the Lumia 900, will officially hit the company’s sales channels on April 8.