Limsa Lominsa, I believe. We got there, too, after finding out from you that you could. And we went on a run through to get every aetheryte on the area around it, and visited the two (fairly dead in the beta) towns nearby. Nice area! Now we're going to do runners for all the other aerethyte around Ul'Dah and then Gridania, once we figure out how to get there. xD

EDIT: Worth noting how amazingly seamless everything is when going from area to area. The only time I remember loading screens is when FMV's are coming into play. Great stuff on that part.