Apple CEO Steve Jobs concluded his keynote speech at Macworld Expo San Francisco with a big thank you to the families of Apple staff.

The surprise thank you came a month after the family of an Apple employee at the Cupertino office staged a protest in the staff carpark, complaining about the number of hours that employee was required to work in the run up to Christmas.

Jobs said: "I want to thank the spouses. We couldn't do the things we do if it wasn't for you. We know that you want to see more of us."

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