In the same article there is an interesting paragraph that says:
Quote:
Barnes & Noble will support PDF and EPUB, a reflow-centric, XML-based open standard with broad support from the publishing industry and the Association of American Publishers. With this enhanced version of Adobe Content Server, publishers and booksellers will be able to protect EPUB and PDF eBooks through either social password or identity-based authentication options, allowing their readers access to interoperable eBook content across diverse platforms.
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Social password protection will be available early next year.
Dale