- (void) presentModalViewControllerInSizeYouWant (for iPad)

gistfile1.m

- (void) presentModalViewControllerInSizeYouWant
{
	float  	width 	= <width you wnat>;
	float  	height 	= <height you wnat>;

    UIViewController *viewCtl 			= [[UIViewController alloc] initWithNibName: @"UIViewController" bundle: nil];
	viewCtl.modalPresentationStyle      = UIModalPresentationFormSheet;   // set presentation style
	
	[self presentModalViewController:viewCtl animated: YES];    	// show!
	
	// Just after presenting the view, customize it now!	
    viewCtl.view.superview.autoresizingMask = UIViewAutoresizingFlexibleTopMargin |  UIViewAutoresizingFlexibleBottomMargin;    
    viewCtl.view.superview.frame = CGRectMake(viewCtl.view.superview.frame.origin.x, viewCtl.view.superview.frame.origin.y,
                                                     width, height);
    viewCtl.view.superview.center       = self.view.center;
    [viewCtl release];
}