Hello,
just to give you a quick feedback about the this year linuxtag - it was overall a really nice event in my opinion. A lot of people passed by at our booth to discuss about Kamailio and VoIP in general. Carsten Bock presented about our new IMS extensions, Andreas Granig showed a demo of their new kamailio based carrier product. I hope that we can provide some photos of the event soon.
We've did two presentations, one about "Linux at 1&1" including a Kamailio part on wednesday, and Carsten did two "FastForward" talks on wednesday and thursday. I've uploaded the slides to our webserver:
http://www.kamailio.org/events/2011-linuxtag/linux-at-1and1.pdf http://www.kamailio.org/events/2011-linuxtag/kamailio-quick.pdf
Also interesting, the German Federal Office for Information Security (BSI) presented the upcoming "Gemeinschaft" PBX project version 4 that will use Kamailio (and Freeswitch). They sponsor the project, it aims to provide a secure, scalable and easy to use open source PBX plattform.
Best regards,
Henning