Hey,
Tried searching with quite a few numbers of keywords but found nothing.
Anyhow, I found a way to get mounted on a flyer in Dalaran.
The spot is here:
http://data.fuskbugg.se/skalman01/-map.jpg
Get there, and take a seat on:
http://data.fuskbugg.se/skalman01/chair.jpg
While sitting, press your flying mount and you should get mounted.
Also, don't know if it was only me, but I got 'Explore: Dalaran Isle' when I sat down there the first time.
Have fun,
DEFiNE