iOS iPhone soap

Shesh. Did you even trying googling this? The first two hits using the most obvious search terms are gems.

This is the top google result for 'iphone soap':
http://stackoverflow.com/questions/204465/how-to-access-soap-services-from-iphone

The latest post links to this: http://abhicodehelp.blogspot.com/2010/12/handling-soap-with-iphone.html

Is 2010 recent enough for you? SOAP was designed in 1998 I don't think it's magically gotten harder to handle

Well using http://developer.apple.com/library/...es/NSXMLParser_Class/Reference/Reference.html

and abstracting a set of functions/a object that uses it to make the syntax more seamless is what I'd recommend.