In Pictures: 33 best and worst celebrity tech moments of 2012

Playing Steve Jobs, Gaga over social networking and more tech endorsements than you can shake an iPhone at

Oprah loves Surface! (From her iPad)

Microsoft’s blanketing of TV and the movies with Surface and Windows 8 marketing took an expected turn for the company when Oprah Winfrey took to Twitter in November to praise one of her favorite things -- the Microsoft Surface tablet – which she claimed to buy 12 of for gifts. The only problem? She sent her tweet from an iPad. Supermodel Kate Upton had a similarly awkward moment, being photographed with her iPhone at a Galaxy Note 10.1 launch.

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