Biggest surprise: Windows Phone buzz
Biggest surprise: Windows Phone buzz

One year after its splashy launch, Microsoft's Windows Phone hasn't made a dent in the Android-and-iPhone juggernaut. Nokia's all-in push could shake things up: The Lumia 900, Nokia's first high-end Windows Phone for the U.S. market, was the sleeper hit of CES. The sleek phone has visual flair, and its eye-catching image tiles and data streams are intuitive and fun to play with.

AT&T, the phone's exclusive carrier, hasn't yet announced a release date or price tag. Even Nokia's rivals are pulling for the Lumia: If Windows Phone finally has a hit, that's good news for Samsung and HTC, which also build Windows smartphones and would love to reduce their reliance on Google's Android. -Stacy Cowley

By Stacy Cowley and Julianne Pepitone @CNNMoneyTech - Last updated January 13 2012: 3:05 PM ET
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