InfoQ: Is Open Source the way ahead for SOA?:
Look at this:
"The report mentions that of 400 executives surveyed, 71% of them view open source as either 'important' or 'very important' for consolidating their IT infrastructure. Plus, 57% said that they saw open source as 'important' or 'very important' for facilitating a migration to SOA. According to Forrester, 78% believed that the open standards approach typically taken by open source software is a major factor driving their view of its value for SOA next-generation enterprise architectures."
And look at all famous open source communities, they all put more and more energy on SOA and SOA tool kits. Taking open source solutions seriously is not any double. To engage existing technologies between communities will be one way we can adopt. I think if those open source communities can aware this, we will have more and more SOA candidates on our hand.