iPad Usability Reports from the Nielsen Norman Group27 May 2011
Jakob Nielsen has published two iPad usability reports for free download in PDF format. The first report contains empirical data from testing iPad usability in 2010, when the iPad was a new device. The second report updates the 2010 usability findings with the results of new tests conducted in 2011.
The download page for the iPad usability reports is an example of a gateway page. Gateway pages contain links to large files such as PDFs. As Nielsen points out in his July 28, 2003 Alertbox column, “gateway pages prevent PDF shock,” which catchily describes the way we feel when we click on a link and find our browsers downloading a large PDF file instead of a lightweight HTML page.