Deja vu? Absolutely. Nokia's chosen to make its first, big Windows Phone splash stateside with the humble Lumia 710 on T-Mobile. Eager Espoo fanboys and girls were likely hoping the company would've opted for a Red, White and Blue polycarbonate debut (see: Lumia 800), but that's not the black and white story being told here. So, put your hands down if you already have a smartphone to call your own -- this one's aimed squarely at