Playon has it's issues and it's interface sucks. Tech support sends out canned responses and blames everything but their software.
Playon will not stream netflix half the time for me, but the new Xbox Netflix interface works prefectly and looks a hell of a lot better than using the video browser that playon requires!
A) No movies by Columbia( owned by Sony ) are available via XBL. Hmmmm.
B) PlyOn also work streams Netflix. ALL netflix not just some. It's $30 one time fee vs $50 per year with XBL. PlayOn also streams NetFlix via the PS3. So Netflix on XBL isn't really much of an advantage.