On my demand, a friend of mine is writing an interesting Ipad app to store Krpano 360's on the Ipad, Iphone and Ipod. Very useful to show your pano's when you're on the road without Internet connection.
The app is still in development but will be available in the appstore within a few weeks, and will be (normally) for free.
Here's a screenshot.
Grtz,
Yvan.