I'm on chapter 7 about now, and I keep finding myself thinking of Lost now. I think this is mostly because of the focus on great characters, the jungle setting, and now the flashbacks. Lost is one of my all time favorite shows, so for me this is a good thing.
As for the reasons for the Trois problems, I'm thinking that instead of just being one of problems that it might actually be all of them adding up to make a bigger problem.
Overall I'm really liking the book so far, and I'm very curious to see what it is that happens to Jaza that has everyone talking.