Apple's sample kinda sucked. Lets suck slightly less.

Insanity. Boredom. Or, seeing how quickly a string can be reversed. And proving that the compiler is smarter than the programmer. 49 different ways to reverse a string.

More flexible* power monitor for Macs. Allows for more control over when to receive a warning about your computer's power state and for more types of warnings to be created/used. *Eventually. Currently beta and with a UI that is a work in progress.