Document for transport development status?

I see in the list of Kraken documents there is a Criteria For New Transports document and I find it helpful.

Could it also be helpful to have a summary document of transports/protocols that have been proposed and the reasons they won’t be worked on?

Right now, I am wondering about a Novell/Groupwise IM transport, and I am going to guess your hands are tied - I don’t see an API out there, even if Pidgin supports it, and I don’t know anyone with a server to test on.

Thanks!