“Old weather flying” will have a cost, currently pitched at 250g (pretty trivial to reach), so this is more of a “we’re going to make sure you see it as something to aim for” rather than “Gold Sink!”. It’s almost certain that you’ll only be able to learn this skill with the Cata expansion pack. No flying for you in Azeroth without shelling out the notes to Blizzard.
http://www.wow.com/2010/09/09/cataclysm-beta-old-weather-flying-will-cost-250g/
MMO Champion has been digging through the latest build and has picked out the current values for the tier 11 set bonuses, I’ve not looked in detail at this yet and to be honest I would expect the number to change anyway as the numbers in general seem very uncertain for the general class builds at the moment.
http://www.wow.com/2010/09/09/cataclsym-beta-tier-11-set-bonuses-revealed/
