Are you talking about getting paid per download? Or free availability? I can't speak to paid content, but if you have a podcast feed in the iTunes podcast directory, and you publish a video enclosure, I believe, bingo, you've got a video listed in iTunes (well, the podcast area anyway). To get listed in the directory, which requires a review process, an existing member of iTunes (someone with an account - it could be you), suggests the feed. If you pass the review you get added after some days or weeks, can't recall. I've got three feeds in, two are the Nurse and Airline sites in my signature. If you want to sell your video this link might be a helpful starting point - but it is for "labels and Artists" to have their music added to the music store - which sounds like your question, but tied to video, of course. http://www.apple.com/itunes/musicmarketing/faq.html This link may also be of some interest: http://www.apple.com/itunes/videos/ Hope this helps!
Sure thing. Just get a podcast feed going - get listed in the iTunes podcast directory (start with simple MP3s if need be - but you'll need a podcast with a media enclosure - not just an RSS feed) - then feed any "legal" type and you'll have your videos in there. I think iTunes the application will make some of the major video file formats iTunes compatible - just look around the app and make sure you are running a recent version. Good luck!