well, this was going to happen sooner or later.
from what it sounds like these UMDs may not have region coding... neither region 1 or 2.
sadly enough, these are the only UMD videos that are comming out that interest me the slightest... would be grea for an ice-breaker:
"hey guys, wanna see what I imported from japan. Its something new for the PSP that has yet to come over here in the states. It really pushes the hardware of the system and promises to have an impact on players."
then you whip it out and either get slapped, walked away on, or, if you are lucky, be able to use this as a great conversation peice.