Dealloc method in iOS and setting objects to nil

Question

I have a pretty basic question. In some examples I\'ve seen, objects are just released in the dealloc method. In others, the objects are released and then set to nil

Answer 1

- (void)dealloc
{
     [searchPlace release];
     [super dealloc];
}
- (void)viewDidUnload
{
     [super viewDidUnload];
     self.searchPlace = nil;
}

Is this like what you say?