I've been thinking about how Apple could possibly implement multitasking in a way that matches their current OS guidelines, and I figured Exposé would be the perfect match for multitasking. It's what I use in Snow Leopard to switch applications.
EDIT: Ideally, the home button could be pressed 3 times to bring up Exposé. This is for the people who asked how I thought it should be activated.
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EDIT: Ideally, the home button could be pressed 3 times to bring up Exposé. This is for the people who asked how I thought it should be activated.