Despite the document, White House deputy press secretary Barry Toiv denied that the database, which included information on over 200, 000 donors, supporters, friends, legislators, dignitaries and journalists, was used for political purposes.

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"While anything that Rupert Murdoch and Steve Jobs do in collaboration is bound to be unique, we have to be mindful of the fact that the tablet is just in its infancy stage -- it's like the early days of the printed press, " said Barry McIlheney, chief executive of the UK based Professional Publishers Association.

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Associated Press writers Russell Contreras and Barry Massey contributed to this report.

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