Yahoo says: No SOAP for you!
My first gut reaction was, "Lame!" But then I thought about it, and I guess it's not that a big deal. Let's face it, the XML exchange for something like getting search results isn't exactly complex. The only bummer is that lazy jerks like me can't pop in the WSDL and crank something out in five minutes.
I'd really like to see what MSN Search comes up with. Their results are still hit or miss, but the frequency of getting irrelevant results is dropping like crazy for me.