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!
You can find out more details over at MoDaCo.