The OASIS WS-SX Technical Committee (of which I am the co-chair), has just started a Public Review of it's latest specifications. If you care about key Web Services security standards I encourage you to read the new specifications and provide the committee any feedback you may have. The specifications out for review are:
WS-Trust Version 1.4
WS-SecureConversation Version 1.4
WS-SecurityPolicy Version 1.3
The public review starts today, 24 July 2008, and ends 23 September 2008.