It is also interesting to note that worldwide LCC are trying to morph into something akin to a legacy carrier. Jetblue, VirginBlue, Southwest are just some who are trying to bring in a higher business fare or business class to attract higher yield. Meanwhile Ryanair and Tiger are charging for excess luggage, seats next to each other and the like.
It will be interesting in 10 years time how many true LCC remain and how many have moved closer to the legacy carriers that they all claimed had unsustainable business models. LCC have won the battle but they may end up losing the war.
Interesting to see where Jetstar will wind up in this.