Apparently, this will be an accountbound mount in MoP, so all the more reason to get it!
More importantly, I saw our beloved Thur'ruk, His Excellence, the Magnificent Sadok Sharptongue (that's his full name, you didn't know?) put up an achievement-run in old dungeons this friday. I'll try to make it and if you can, sign up too, so we can maybe work something out and start hatching the eggs of our wondrous drakes.