skobbler GmbH has ForeverMap 2 – Worldwide Offline Maps and Online Maps (iTunes Link) for the iPhone, iPod Touch, and 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.