Under the best-case scenario, the utility would simply push a firmwareupdate across the standard wireless network to all the affected meters, overwrite the worm, and return the meters to normal operation.
Well-known HTC phone modder Football doesn't want us to get comfy: he claims to have both obtained a leaked version of Sense 4.1's ROM Upgrade Utility (RUU) and folded it into the 2.2 update to his Maximus firmware for the international One X.