This page on IGN about Plants vs Zombies iPad Cheats says:
Go to your Zen Garden when most or all plants need watering. Once they are all watered and gleaming, give Stinky chocolate and then leave Zen Garden. Come back to the Zen Garden after playing a bunch of games, or just come back 5, 10, 30 minutes later. You must enter the Zen Garden from the Main Menu. Once you enter the Zen Garden, it'll state that Stinky earned you (X) amount of gold. Gently swipe a short distance from the top of the screen, but not more than a few centimeters. Repeat this slowly, but regularly. You'll notice the amounts Stinky collected for you constantly changes and your coin amounts increasing. If Stinky is asleep or goes to sleep, do not wake him. just continue swiping, and DON'T collect any coins that pop up.
Is this a real exploit?
I can't figure out what this part means:
Gently swipe a short distance from the top of the screen, but not more than a few centimeters
So my question is, does such a money-making exploit exist in the Zen garden in the iOS version of Plants vs Zombies?