I think the Hori controller Nicoga is talking about is the PDX controller -- the question that technically should be asked is if the controller works with PD:FT. And the answer is a yes, unless some horrible disaster happens and they release screw-y controllers (I don't see this happening at all) it will work on both. ^^
If he's talking about past Hori controllers, I think those have all worked on FT thus far with the proper cables judging by the posts earlier in the thread, and I see no reason they wouldn't work with X.
As for if it will work with US consoles, I won't say anything with 100% certainty, but I can give you my 99% and say yes it will work. Controllers aren't region-locked. =)