I have no idea what the world tour is but it says "not for sale" on the back of mine and it came with 2 letters: one with specs(I think) and one with do's and dont's.
I still need to read them and fire up the X1. maybe later
There is a world tour with X1 units circling around selected head-fi members, and there is another "tour" with samples being sent to other worldwide reviewers of FiiO products. In either way, those are early production samples, and as you have seen in my review pictures - they marked with "not for sale" on the back.
hope so , we have to control the margin for us and our agents, at the same time , not to control the the cost for the parts, that is why we can provide the first $100 high resolution DAP in the world , with individual DAC and headphone amp.