If you were wondering whether or not the ZTE Grand X would cross the oceans to launch in the US, there's a good chance the mystery is over. An unusually detailed FCC filing has uncovered a V970T variant that's destined for T-Mobile USA, complete with the carrier branding, Wi-Fi calling and AWS-based 3G data to match. Other details of the Android 4.0 phone are lacking despite the presence of a manual, although the V970 edition we've seen elsewhere runs on a dual-core, 1GHz
