Kicking off what's sure to be a fun-filled week of announcements surrounding CTIA out in Vegas, AT&T's smartphone lineup just got a little beefier thanks to the official introduction of a couple devices we've been expecting for a hot minute now. First up, the Nokia E71x is just about ready for shelves, bringing WiFi, AT&T Navigator (which hopefully won't preclude the use of Nokia Maps and other GPS-enabled apps), and all of the lauded physical design characteristics you're used to from the original, unbranded E71. The best thing here might be the price -- just $99.99 on contract after rebate, thankfully beating rumors of $2