Is it possible to do sso for http://aws.amazon.com using saml?
AWS now supports SAML as of November 2013.
We are excited to announce we’ve expanded our identity federation to include support for the Security Assertion Markup Language (SAML) 2.0, an open standard used by many identity providers. This new feature enables federated single sign-on, or SSO, empowering users to log into the AWS Management Console or make programmatic calls to AWS APIs, by using assertions from a SAML-compliant identity provider, such as Shibboleth and Windows Active Directory Federation Services.
More details at this blog post: AWS Identity and Access Management Using SAML