Yeah, a couple of last minute editorial things - "headers" -> "header fields", an example to show the use of Content-* headers for single-part messages because

Yeah, a couple of last minute editorial things - "headers" -> "header fields", an example to show the use of Content-* headers for single-part messages because it was considered a little unclear, and an update to the contact address for the IANA registrations. They should be cleared up this week with everyone (except me, boohoo, couldn't make it due to local commitments at home) in Montreal for IETF105.