I've been experimenting with a server implementation of the SOAP 1.2
GET HTTP binding for the interop registry. You can see the results at

http://soap.4s4c.com/registration/toolkits/
http://soap.4s4c.com/registration/tests/
http://soap.4s4c.com/registration/rounds/

[If you're an IE user, you might want to use this registry tweak to
show application/soap+xml directly]
http://www.pocketsoap.com/sf/#appsoap

This has a slightly expanded data model over the current SOAP 1.1
interface, I plan to add a SOAP 1.2 interface to do updates that is
based on the new data model in the near future.

Many thanks to Peter Drayton and Sam Ruby for their assistance.

Cheers
Simon
www.pocketsoap.com