AT&T has yet to announce release details on their flagship HTC phone, the One X. But, now it appears someone has gone and done the deed for them. According to screenshots from an AT&T store computer, the HTC One XL may release on April 22nd. According to the AT&T retail employee, the store has a “reset” on the 22nd in which they’ll turn out old devices (such as the Inspire 4G) and bring in new ones. Since training started on April 10th, it makes sense to this employee that the 22nd will be the final release date.
Source // XDA-Developers