Recently SIP related activities are very visible; especially, with reSIProcate, Jain-SIP protocol stacks popularity and major Java EE Container vendors supporting SIP Servlets it is easily comprehensable that industry is expecting a increase in use of SIP in business applications, as more and more applications want to include web based voice/video chat.
Recently, GlassFish project has introduced the SailFin project, which is a SIP Servlet container. Hopefully, by the will of Almighty, it will also include support for easy portability for Jain-SIP based server applications into its container as well.
If I were to bet on a technology of next generation I would place my bet on SIP based applications. Hopefully, by the will of Almighty, I hope to bring more writeups about SIP applications - mostly server side.