Because you refer to WSDL I assume you mean you are looking for SOAP as a transport mechanism. We recently introduced a SOAP proxy as part of the Complete Team package. With a little bit of work you could get this running on Touch.
I would recommend that you use a standard ajax request or jsonp request. SOAP is a pretty heavyweight XML-based protocol that isn't very friendly to mobile devices.
Thank you for the response. I had been to that link and looked at a couple of the examples but not those specific ones. I'll check them out.
I mentioned the WSDL because that seemed to be how the service that was created did things - it's a CGI .exe file. I'm not sure if other access methods are available - as I said, I'm a rank beginner in this particular area. Hopefully the examples you mentioned will tell me what needs to go where in the IDE to make it all work. Thanks again.