HTC unveiled two smartphones with dedicated Facebook buttons. The buttons give immediate access to Facebook and let you update your status, photos, check places, share music, photo news, etc.

HTC displayed two models, The ChaCha and Salsa at Mobile World Congress, in Barcelona.

The ChaCha features a full QWERTY keyboard and a 2.6-inch, 480x320-pixel-resolution touch screen, while the Salsa is an all-touch smartphone, with a 3.4-inch, 480x320-pixel-resolution display. Both run on Android and have back-facing 5-megapixel cameras and front-facing VGA cameras for video calls.

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