1.	I hope you read Jon's observations. I will of course be writing more about it myself in the coming weeks.
2.	I believe Instant Outlining is to Instant Messaging as the spreadsheet is to a desktop calculator. A calculator can edit one number, a spreadsheet can express relationships between numbers. An Instant Messaging client can transmit a single idea, an Instant Outlining client can express relationships between ideas.
3.	Instant Outlining in Radio is still a beta and will be for a while. If you're an adventurous soul with high tolerance for user interface glitches, please give it a try. Everything Jon said is true, and what Tim said is true too. It's not for everyone. But it is for workgroups who want to get to the next level after email.
4.	Dave Winer
5.	PS: To facilitate growth, the formats and protocols used in Instant Outlining are open, clonable and documented.