I just recently had my iPad replaced with a new one (due to a WiFi problem). When I restored it from a backup that I made just hours before, I noticed that all my "Sample" books were not restored nor was my "default" copy of "Winnie the Pooh".
Of course, I can download "Winnie the Pooh" again for "Free", I don't remember all the sample books that I had. Somehow, those book references and that they were "Sample"s should have also been backed up.
If this is not the place to report this "bug", please let me know where I should send it. Thanks.
a new iMac and a Mac Mini and a PowerBook G4, Mac OS X (10.5), New iPad WiFi