Do you like messaging protocols? What about open source ones? Then here's something new for you to learn. (You said you like to learn, right?)
James Turner on CIO.com: This week Cisco Systems announced a new messaging protocol intended to allow developers to integrate client/server applications without the overhead of traditional protocols such as SOAP. The new protocol, Etch, was introduced at a developer's conference covering the new 2.5 release of the Cisco Unified Application Environment (CUAE). Etch is slated to go into beta release this summer.
Details are murky, as a Google search for "Cisco Etch Messaging" results in pages and pages of syndicated publications of the same CIO article cited above in big trade magazine sites. Interestingly, a search on cisco.com yields nothing relevant.