Hey Chris, some answers on the questions you had in this article:

Unread items per channel: that doesn't exist yet, I've opened it as a feature request
Marking items unread while scrolling, like Monocle does: opened as a feature request too. It's a tricky thing, but it makes sense. And to be fair, I've tried avoiding it, but I will give it another try!
Moving a post: this depends on the microsub server. Afaik only the Drupal microsub server supports that call. I've fixed the dialog popup question in the upcoming release, it was confusing indeed.

I've got a couple of other ideas in my mind, but let's try to get these one in first :)