Service compoenent architecture (SCA) has reached some important milestones.
In "SCA V1.0 Publication & OASIS Standardization Intent Announcement," the OSOA announces SCA v1.0, to go with SDO 2.1. The specs have now been submitted to OASIS for ratification as a standard.
I've talked about Service Component Architecture (SCA), the new programming model designed specifically for SOA, and Service Data Objects (SDO), a programming model for portable data. SCA is built into WebSphere Process Server and is being standardized by the Open Service Oriented Architecture (OSOA) organization, a collaboration of a dozen top software vendors including IBM.
You can get more links on my wiki; Open Service-Oriented Architecture is a good place to start.