Hello,
for the second year, Kamailio is participating in GSoC program. For 2011, the proposal is to implement a signaling gateway between SIP and JINGLE to enable voice calls between the two networks: http://www.jitsi.org/index.php/GSOC2011/KamailioJingle
If you are a student, or you know a student, interested in this project, just write me or to sr-dev@lists.sip-router.org. The application starts today and the deadline is April 8, therefore it is quite a short period, you will have to hurry.
You can read more about the GSoC program and Kamailio at: http://www.kamailio.org/w/gsoc-2011/ http://www.jitsi.org/index.php/Development/Gsoc2011
Cheers, Daniel