How to Use the iPhone's Home Button

That diagram is hilarious!

The home button continually stumps me on the iPhone. I've brought up the multitasking menu a couple of times (probably 25% of the time when I try to do it). Honestly, I stumbled upon the feature by accident once when trying to backout to the homescreen and it brought up the multitasking menu instead. Since then I've tried specifically one of: a double click, triple click, single click, click and hold; to see if I could consistently repeat the multitasking menu behavior, and I simply haven't been able to.

By comparison, the Nexus S is dead simple to use for multitasking or backing out. I really, honestly think the Nexus S benefits hugely over the iPhone by having more than one dedicated button.