Mr. Web Services Interoperability, Simon Guest, has just published 3 articles on real interoperability between toolkits: .NET Framework, IBM WebSphere, BEA WebLogic, and Sun JWSDP. Real interop between the big boys (all playing pretty darn nicely together if I do say so myself).
Of course we needed a nice home for these pieces (and a bunch of others that will be coming) so we created one right here. We also put Mr. Interop right in the middle so that you can read his ongoing thoughts on Web service interop topics.
Don't miss out--and keep checking back.