title: my NSDateFormatter works only in the iPhone simulator
body: <p>I use a NSDateFormatter which works fine in the simulator, but I get a nil when I run it in the iPhone. I hardcoded the date to be sure of the format, but it fails anyway. </p>
  
  <pre><code>NSString *strPubDate = @"Fri, 8 May 2009 08:08:35 GMT";
  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  [dateFormatter setFormatterBehavior:NSDateFormatterBehavior10_4];
  [dateFormatter setDateFormat:@"EEE, d MMM yyyy HH:mm:ss Z"];
  
  NSDate *myDate = [dateFormatter dateFromString:strPubDate];
  </code></pre>
  
  <p>I tried with different region settings, languages etc. on the iPhone. Any idea what is going wrong?</p>