CapeClear recently released a new version of their free WSDL editor. The new version allows adding XML Schemas which, in my mind, was definitely a much needed feature. I think it nicely fills the gap between Visual Studio and its spartanic schema editing capabilities and BizTalk, which is lacking true WSDL editing.
The only gripe I have is that the new version is no longer called WSDL Editor. Now it's the SOA editor ... now I think Whitehorse is much closer to that title. I heard the next version gets a name with even more draw:
The low-carb, fat-free, 100% Atkins compliant, SOAEditor.
Nevertheless, it's a tool worth having ... just rename the executable and the directory it lives in ;)