WAS XML Feature Pack Open Beta is now available. Adds support for XPath 2.0, XSLT 2.0 and XQuery 1.0.
Details here:
http://webspherecommunity.blogspot.com/2009/04/was-open-xml-feature-pack-beta.html
https://www14.software.ibm.com/iwm/web/cc/earlyprograms/websphere/iwsasfpobp/index.shtml
