Dis-integrating conversations

There's been some interesting dialog recently on the topic of walled garden conversations (e.g., a blog) vs. open conversations (e.g., FriendFeed).

This blog entry and the Scoble entries it references are fascinating reading. The explosion of conversation-oriented capabilities on Web 2.0, especially those with a social networking twist, is generating a lot of Exploratory activity.

My impression is that we're in the early stages of groping for the syntax...semantics are not really on the horizon yet.