No, Apple makes those proprietarty. I don't know if you've seen zencast.com but they have a few. Also they just signed a deal in Frane with three different content providers to offer video and music subscriptions. The same will be done for N. America.
Can the Zen Vision:M download movies, TV shows, and other video items from iTunes? I'm trying to find some movies and video content to add but the sites that Creative lists are filled with lack luster choices. Thanks.