HTC just launched One X and One S smart phones today at most European and Asian markets. The HTC One X is expected to land on AT&T and Sprint in April/May, and HTC One S on T-Mobile in late May. Besides these 2 models, One V was picked up by MetroPCS, Virgin Mobile and U.S. Cellular.
The U.S. models have critical differences from the European and Asian models. The European/Asian One X is using Nvidia Tegra 3 processor, but the AT&T model will have a Qualcomm processor instead. Those 3 new phones will feature Android 4.0 ICS with the newest version of Sense 4.0 and Beats Audio.