Samsung Intrepid SPH-i350
Simply put, it wouldn't be profitable. Why only this phone when you know damn well 80% of Netflix users have cellphone and of those 80% a minimum of 70% would want NetFlix on the go.
If there is a App, it will most likely just be to check your account and make changes. No watching Instant Queues on your phone yet.
This also introduces a discussion about Streaming Video's, Battery Life and of course, Data Speeds and Network Coverage.
Maybe in the Future that is 4G we might see NetFlix pursue such a endeavor.