At first I always thought that X-Metal reffered purely to the style and not the material. I would assume that any frame encorporating the X-Metal alloy would be designated as such (as per the why 3's), as opposed to it being stated that they are titanium frames. It would be nice for someone from the O to explain the difference between the two.
As for where they are made, one part of me says that Ti is a bitch to work with and is probably handled in the desert. (That sounds very "casino" doesnt it?) The other half says that the x-metal facility is set up for investment casting which I assume, due to the amount of give in the why 3's earstems, is not the method used for the production of Why 3 frames.
Then again, the components of the Time Bomb sure dont look like they have been produced using a casting process. I would imagine there would be too many nooks and crannys for the post casting treatment to give a smooth finish.
I am probably totaly wrong here but I thought I might give it a shot.