[UIView beginAnimations:nil context:NULL];
CGAffineTransform transform = CGAffineTransformMakeScale(1.5, 1.5);
bananaView.transform = transform;
bananaView.alpha = 0.0;
How it works. beginAnimations starts the animation block. you can guess what setAnimationDuration does. CGAffineTransformMakeScale basic sets the end product for how you want the View scaled, in this case 150% of original size. You then assign the transform to the View, and set the final alpha. Then finally commitAnimations. The overall effect is that in .4 seconds the View grows to 150% and fades to invisible.
Very interesting and very easy. Will play with it more.