I can't always get it to work - do you have to be in the same zone as the target? (2nd question: is it really useful at all then, if you can't port across zones??)
Keep in mind that even though several of the races come with the ability to translocate, it is on a 12? hour cooldown. Since the last update to tinkering, now anyone (of the correct minimum level) can have the same function on a 30min cooldown.
Thanks - I found the tinkering recipe "Call of the Tinkerer" - rare recipe and 6 rare loams for an unlimited charm. The drawback is that you have to get to level 75 first...