UT updates to the same ver as everything else.
I would say that you have been lucky, you probably have the loop but the fonts recover it for you.
It is not always the case though. My final decision to switch to the audio exploit (and make my package) involves a sad story about bringing my X over a friends house and sitting there embarassed, as my "Awsome new hacked machine, that can do everything under the sun, and once I show you this you will rush out and get one!" not only didn't do anything under the sun, but wouldn't even boot.
Needless to say, my friend did NOT rush out and get one! What they did do is sit there laughing at the fact that MS is even capable of crashing on a console system! (nevermind that I had a big hand in that!

)
Once I got it back home I let it loop for 2 days before finally admitting defeat and restoring the thing back to virgin.
At this point, if you are worried that the X may be denied power for more than a couple of hours, just use the audio exploit. Sure it doesn't boot up hacked, but it's not that hard to invoke, and doesn't have any chance of the loop.
On the other hand, if you know you will NEVER unplug your X, then go for the font exploit!
Morden.