I just found this virtual tour player app on the Apple App Store, but do not have an iphone... http://www.wide-production.fr/mobile They are using krpano on their website, perhaps they are just using the krpano javascript viewer and packaged it as an app, or is this a real Iphone application? Seems interesting, try translating the site to English to read the text in Englishhttp://translate.google.com/translate?hl=en&sl=fr&u=http://www.wide-production.fr/mobile</a>
Would be great if there was a native app that used 3d and zoom to view gigapixel panoramas. I tried the Krpano javascript while at the Apple store the other day and thought is seemed great. Gigapan has an app out now too, but not using 3d.
Cheers,
Jason