So I got my warrior to 70 about 7 days ago got my flying mount and started messin around. I read a post a while back that if you summon someone with the meeting stones and then you begin mounting and press accept it would work. So I went to Shattrath in Terokkar forest (portals to every city) and began mounting my flying mount, one second in I clicked the portal and boom. I was in exodar with my flying mount. Sad thing is that you cant go outside of exodar or it will dismount. I also tried this using Ironforge/Stormwind/Darnassus but it doesnt seem to work...maybe I'm just doing it wrong. Anyways you're not supposed to be able to use this out of Outlands/Draenor. Havent tried Silvermoon I'm Alliance so yea... Anyways GL to you all.
Also sorry if this is already posted I searched and found nothing... figured not many people hit 70 in a few days...