Auto manufacturers, for example, are trying to use tiny devices that can sense when to release an airbag and how to keep engines and breaks operating efficiently.
When working with a fixed width design, be sure to at least center the wrapper div to maintain a sense of balance (margin: 0 auto; usually does the trick).
When the auto-correct feature on your iPod Touch or iPhone tries to correct your spelling, but instead changes it to words that just dont make sense with what you're typing.