iOS 3.x and later are supported.
What about for the multi folio viewer using v18 of the viewer builder tools? Could you link me to an adobe document?
Actually, it sounds like we're dropping support for iOS 3, so it's iOS 4.x and later. And the support is the same for any DPS app on iOS. Unfortunately, this is not documented anywhere, though I've been trying to get device compatibility publically published.