Alright, well I've managed to get something working that is able to post and receive/view a response from a SOAP service in my iPhone app as of xcode 4.0.
http://abhicodehelp.blogspot.com/2010/12/handling-soap-with-iphone.html
I used bits of code from the above link in combination with some of my own exploration with regards on how to actually authenticate with a username and password which I've added below.
- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
{
NSURLCredential *myCreds = [[NSURLCredential alloc] initWithUser:@"**USERNAME**" password:@"**PASSWORD**" persistence:NO];
[challenge.sender useCredential:myCreds forAuthenticationChallenge:challenge];
[myCreds release];
}
While old, the link below seemed to be a much more popular question when asked so im sure there are some more resources available that I didn't end up using.
How to access SOAP services from iPhone.
Hope this helps anyone with a similar question!
-Karoly