Pretty much obvious:
1) Meta Achievement reward
2) Deathwing (low % on normal, 100% on heroic)
but the 3rd one eludes me. I doubt it will drop from the 5 mans and it's probably not a TCG mount (I'm betting on Swift Lovebird for that). It might be from the RRF version of Dragonsoul to encourage decent players to use it.
Any ideas?