HTC just unveiled its MWC lineup a few hours ago, including the ChaCha and the Salsa, which both possess dedicated Facebook buttons (all the cool kids have Facebooky phones these days). AT&T, however, just issued a statement to let the world know that it'll have a Facebook-dedicated HTC handset by later this year. Now, there's no word on which phones are AT&T-bound just yet, but a spokesperson told All Things D's Ina Fried that the carrier w
