A statement from Apple stated the following...
We are deeply saddened to announce that Steve Jobs passed away today.
Steve's brilliance, passion and energy were the source of countless innovations that enrich and improve all of our lives. The world is immeasurably better because of Steve.
His greatest love was for his wife, Laurene, and his family. Our hearts go out to them and to all who were touched by his extraordinary gifts.
A message on the Apple website invited people to send their condolences to this email address.
"Apple has lost a visionary and creative genius," says the message, "and the world has lost an amazing human being."