Here is a little exploit i found using RAF.
Requirements:
Two accounts, one that is BC enabled, and one that is PreBC (no expansion bought). Have both of them linked through the refer a friend.
Next, go on a flight path with the account that doesn't have the expansion. Now, once you have arrived at the location you want to drop off at, have the other account go to shattrath and use the RAF summon.
Because the account doesnt have TBC, the summon doesnt work, and you FALL off of the flight path. I found this completley by accident, and i will post pics once i get the chance. And if you want to be able to get there with the other account, just summon them. (works will with an SS/Ankh.)
Great to get anywhere you want by falling off the flight path!
I searched and found nothing related.