I've been checking out libxmpp lately, the successor of libpsi. Actually I am supposed to be studying for exams, but well, you need to have a few interesting things to do once in a while. :)
Justin allowed us to use development snapshots from the library, and since it is still close to libpsi in terms of the API, porting will not be too hard. I can't wait for Kopete 0.7 to be released and CVS to be open again.