Usability of iPad Apps and Websites: First Research Findings

I can’t help but think that the glass vessel that was web standards
has been shattered again.
Reading this usability report has highlighted to me that the iPad has
a crisis of standards, mainly for the mental model that people
understand user interfaces by.
Standards for iPad developnent have gone back to the early 90′s era
web design where nobody knew what was happening.

http://www.nngroup.com/reports/mobile/ipad/