skobbler GmbH has ForeverMap 2 (iTunes Link) for the iPad in the iTunes App Store for FREE (regularly $2.99) for a limited time.
With ForeverMap 2 orientation is no longer a problem. You don’t need paper maps any more. No matter where you are, no matter what journey you are on, OpenStreetMap maps are available to you everywhere. You can decide, where you want to use it online or offline. Simply download as many complete countries as you wish (ideally via a WLAN) whenever you like.
Once installed you will always have them with you, even without an Internet connection, and you’ll be able to use them fully. Including every city and city map. The map remains a single unit. You never have to jump backwards and forwards between lots of maps.
You don’t incur additional charges in the app for flat rates, map packs or anything else. And of course, once the maps are installed you never have to worry about network quality or data reception. What’s more, you avoid the high costs of data roaming when you are abroad.
ForeverMap 2 does also contain a comprehensive travel guide, which provides you with interesting information on thousands of destinations around the world.