ToolTips in iOS through native UI Controls?

How do I create tooltips or something similar in iOS, without using any third party classes? I have a UIButton that I'd like to have a tooltip popup for a few seconds or until it's cleared. I have seen third party classes and libraries, but want to know if natively it's supported. I also want to show an arrow popping up from where the tooltip is coming from. I've seen some UIActionSheet Popups have this arrow.

Cheers, Amit

Well I ended up using the third party tooltip CMTopTipView afterall. It's relatively low overhead, just a header and implementation. Modified it slightly to account for ARC. Here is what I did:

#import "CMPopTipView.h"

CMPopTipView *navBarLeftButtonPopTipView;

- (void) dismissToolTip
{
   [navBarLeftButtonPopTipView dismissAnimated:YES];
}

- (void) showDoubleTap
{
    navBarLeftButtonPopTipView = [[CMPopTipView alloc] 
       initWithMessage:@"DOUBLE Tap \n to view details"] ;
    navBarLeftButtonPopTipView.delegate = self;
    navBarLeftButtonPopTipView.backgroundColor = [UIColor darkGrayColor];
    navBarLeftButtonPopTipView.textColor = [UIColor lightTextColor];
    navBarLeftButtonPopTipView.opaque = FALSE;
    [navBarLeftButtonPopTipView presentPointingAtView:catButton1 
        inView:self.view animated:YES];
    navBarLeftButtonPopTipView.alpha = 0.75f;

    NSTimer *timerShowToolTip = [NSTimer scheduledTimerWithTimeInterval:5.0 
     target:self 
     selector:@selector(dismissToolTip) userInfo:nil repeats:NO];

 }