We have hosted our WSO2 Identity Solution at https://is.test.wso2.org.
WSO2 acts as both an Information Card provider with SAML 2.0 support and an OpenID Provider.
Once you visit the above url you can register yourself either with a self-issued information card [password-less login] or by providing user name/password. Once you are are a registered user, you are automatically assigned an OpenID - which can be used at any OpenID RP. Also, once you logged-in you can download an OpenID Information card corresponding to your default profile.
WSO2 relying party end point is available at https://is.test.wso2.org/javarp.