The HTC One X hasn’t even gone on sale yet, the device will be
available withing a couple of weeks, but Android developer Paul O’Brien
from MoDaCo has already cracked the HTC One X’s software.
He has also released a tool that will let you root the HTC One X, called Superboot which writes a boot image to the device, and that is used to root the handset.
Superboot
is a boot.img that when booted, will root your device the first time
you boot (installing su and the superuser APK). No need to flash any
partitions, no need to mess around with ADB, no messing with the
contents of your data partition, no overwriting the shipped ROM on your
device, just boot the boot image using the instructions below and you’re
done!