I have been trying to find examples on web for information architecture techniques specifically for mobile devices. I realize the steps in getting a IA for any tool mobile/desktop are card sorting, persona, user profile, affinity diagram, sitemap etc. but what I m really interested to know is the differences a designer should keep in mind while making a multi platform application. In other words if my application is going to be working on desktop, mobile and tablet, what are some points a IA should keep in mind?

Thanks