IBM announced the SOAP for CICS feature of CICS® Transaction Server for z/OS Version 2 Release 2 on 5 August 2003 with a planned availability date of 26 September 2003.
SOAP for CICS® is a fully supported product, suitable for use in production environments.
In addition to being a fully supported product it also provides enhanced functionality in comparison to the "Technology Preview" available in SupportPac® CA1M. However, the SOAP for CICS feature is not available for and does not support CICS® Transaction Server for OS/390 Version 1 Release 3.
You can download the SOAP for CICS announcement letter (PDF format) or use this link to the announcement on the IBM web site.