Okay... and here's the deal on whether or not UD HD will be region free.
First, in regards to the PS3 version, there should not be region locking on the game, so you might be able to play it on non-Japanese PS3s.
As for the 360 version, however, you probably will not be able to play it unless you own a Japanese 360. Yes, there have been Japanese games released in the past that were not region locked. This became a problem (to whom, I am not sure…) and has basically become prohibited (i.e. strongly discouraged).
We know this limits access to many fans of the title and are considering possible ways to increase its accessibility.
Thank you for your understanding and we hope you will continue to support the title.