HTC announced two new smartphones at Mobile World Congress on Tuesday that are equipped with dedicated Facebook buttons. The HTC Chacha and HTC Salsa are each Android-based smartphones that are the cell phone maker’s first offerings to feature its new enhanced Facebook experience. To the chagrin of countless Facebook addicts across the country, however, HTC made no mention of U.S. carrier partners when it announced the devices this morning. Fortunately, AT&T has reportedly confirmed that it will carry two Facebook phones from HTC, though it did not say specifically that they would be the Chacha and Salsa. The carrier did confirm that they will feature similar capabilities along with the same context-aware Facebook buttons, however. “In the U.S., AT&T and HTC are exclusively bringing this unique user experience to the market later this year,” an AT&T spokesperson told Mobilized. “It goes without saying this is part of our commitment to have the industry’s best Android portfolio this year.”