Abandon the hope of value-add through weirdness.
This is such great take away from Jakob Nielson’s iPad Usability: First Findings From User Testing:
Abandon the hope of value-add through weirdness. Better to use consistent interaction techniques that empower users to focus on your content instead of wondering how to get it.
This study is just turning one year old, but it’s a great read full of relevant gems like this. It’s been a fantastic resource as I’m currently in charge of UX development for an iPad magazine web app at Voltage. The full version of the 93-page report is available for download here: Usability of iPad Apps and Websites.