I'm assuming that this will end up rolling out sans advanced features and will probably only be able to search for the lowest fares. It's certainly a plus for people that live on facebook and play farmville all day, but how hard is it really to enter a short URL? I certainly wouldn't want to be throwing my payment information over a facebook application.

I'll pass; maybe it'll be good for novice travelers, but I'll take the full site over this any day.