Looks like the simulator and device evaluate parameters in a different order

iPhone OS: Evaluation Order differs from Simulator to Device.m

  NSUInteger uid = 0;
  NSMutableDictionary *dictionary = [NSMutableDictionary dictionary];
  [dictionary setObject:[NSNumber numberWithInt:uid++] forKey:[NSNumber numberWithInt:uid]];
  NSNumber *result = [dictionary objectForKey:[NSNumber numberWithInt:1]];
  NSLog(@"Result: %@",result);
  //device:    2010-03-19 12:51:31.938 Sandbox[568:207] Result: 0
  //simulator: 2010-03-19 12:50:24.281 Sandbox[6594:207] Result: (null)

  uid = 0;
  dictionary = [NSMutableDictionary dictionary];
  [dictionary setObject:[NSNumber numberWithInt:++uid] forKey:[NSNumber numberWithInt:uid]];
  result = [dictionary objectForKey:[NSNumber numberWithInt:1]];
  NSLog(@"Result: %@",result);
  //device:    2010-03-19 12:52:54.911 Sandbox[583:207] Result: 1
  //simulator: 2010-03-19 12:53:19.826 Sandbox[6829:207] Result: (null)

  uid = 0;
  dictionary = [NSMutableDictionary dictionary];
  uid++;
  [dictionary setObject:[NSNumber numberWithInt:uid] forKey:[NSNumber numberWithInt:uid]];
  result = [dictionary objectForKey:[NSNumber numberWithInt:1]];
  NSLog(@"Result: %@",result);
  //device:    2010-03-19 12:55:30.358 Sandbox[598:207] Result: 1
  //simulator: 2010-03-19 12:54:29.667 Sandbox[6937:207] Result: 1