I don't have any specific questions about the charging aspect of it, but I am curious as to what benefits there are to the "Premium" developer account. I understand from the FAQ on that page that it's required for charging for channels, but there are no other details that I can find. The FAQ states that more details are provided during the sign-up process, but unless those are in the developer agreement, I didn't see them.
My Channels: http://roku.permanence.com - Twitter: @TheEndlessDev
Instant Watch Browser (NetflixIWB), Aquarium Screensaver (AQUARIUM), Clever Clocks Screensaver (CLEVERCLOCKS), iTunes Podcasts (ITPC), My Channels (MYCHANNELS)