How to Force quit a stuck application on an Apple iPhone 3GS

Interested in knowing how to force quit an application on an iPhone 3GS? It's easy. And this clip will show you how it's done. Whether you're the proud owner of an Apple iPhone 3G or perhaps just considering picking one up second hand, you're sure to benefit from this free video tutorial. For more information, including a detailed overview, watch this iPhone user's guide.