New version of company’s patented FlipViewer® features improvements to FlipViewer® Library (SANTA CLARA, Calif. — March 28, 2007)- E-Book Systems, Inc., creators of the patented Digital Flip® online publishing technology, announces today the release of its FlipViewer® 4.0 digital publication reader.  FlipViewer® allows users to view publications, such as magazines, books, newspapers, catalogs and manuals, [...]