Messages posted on a glass window pay tribute to the late Apple co-founder Steve Jobs outside the Apple store in Hong Kong.

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Steve Jobs speaks announces the new iPhone OS4 software in Cupertino, Calif., in 2010.

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A note in tribute to Steve Jobs is seen on the window of an Apple Store, Thursday, Oct. 6, 2011, in Las Vegas: "I'll miss you Steve. I will always keep thinking different."

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A pedestrian passes a wall covered with Apple iPod advertisements July 14, 2005 in San Francisco.

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Steve Jobs introduces new MacBook Air models at Apple headquarters on Oct. 20, 2010. Some say one of his greatest legacies is his impact on design.

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A photographer uses his iPhone to take a picture of a tribute to Apple co-founder Steve Jobs in front of an Apple store in London. Jobs, 56, died Wednesday after a long battle with pancreatic cancer.

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