It's like when you play the piano--not everyone can be Mozart.

FORBES: How To Become A Chair Umpire

You and your friends can simultaneously type on it, fingerpaint, play on digital piano keys, call up YouTube videos and Flickr images and zoom in on and rotate a map of the world.

FORBES: Gadgets We Love

But the more sophisticated units, which allow you to not only automate your piano and control the volume of it, can also record and play back your own recitals and integrate with your home theatre system.

FORBES: Control Your Piano With An iPhone