New CM8 and P8 technology preview versions for October 2010 are now available. You can access them through the IBM FileNet and IBM Content Manager Technology Preview for OASIS CMIS page on developerWorks.
The CM8 technology preview has been significantly updated to bring it up to the 1.0 spec level for all features, for all features currently supported. There are known issues that will affect various operations depending on the application. See the readme for details.
The P8 technology preview has been updated to a current level too.