I'm sure most of you are familiar with the CRZ exploit people used for the Time lost proto drake, and I found this playing around with it in WoD.
Basically what you do:
1) Get your Cross realm friends server IP.
2) Get on a flight path
3) Get an invite
4) Turn on peerblock
5) You'll be teleported to your next stop on your fp.
Not particularly useful but pretty neat.