title: Launching Safari from an iPhone app using NSMutableURLRequest and OAuth
body: <p>Launching a URL in Safari is easy enough in an iPhone application - UIApplication's openURL method. </p>
  
  <p>However, I'm doing some OAuth stuff, and want to follow the <a href="http://wiki.oauth.net/OAuth-for-Pownce-on-iPhone" rel="nofollow noreferrer">pattern that pownce used to handle OAuth</a>. But since <a href="http://oauth.net/core/1.0/#rfc.section.6.1.1" rel="nofollow noreferrer">OAuth wants me to explicitly set the Authorization header</a>, I don't know how to proceed. I can set headers via NSMutableURLRequest... but how does that translate into creating an NSURL that my app can pass to the UIApplication method?</p>