>This feature is a pretty crystalline example of the kind of protocol change you can make when you control all the mainstream clients, and that would be an abso

>This feature is a pretty crystalline example of the kind of protocol change you can make when you control all the mainstream clients, and that would be an absolute nightmare for a protocol where you didn't. If the feature is well-documented, and you announce it well-ahead of final release, why? Anyone who is actively maintaining their client can add the feature. Those who aren't will either be forked or die. Nobody said it was on the core product to update third party clients. See: AIM/ICQ and trillian.