Shibboleth Developers

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Has anyone been testing the Shibboleth Beta with any WAYF/DS
applications?  I am curious if there is a good starting point on using
them and properly configuring the SP (and presumably the WAYF/DS) for
pure SAML2 based transactions.  I am most familiar with the Switch WAYF,
but I am open to other options if it is not SAML2 viable.

I read through the Shibboleth SP, and I was not entirely sure what was
meant by creating an EntityID for the WAYF, are there examples of SAML2
Metadata for a WAYF?  Additionally, would a WAYF configured like that be
compatible with non-Shibboleth IDPs (or SPs)?