The Elder Scrolls V: Skyrim Official World Interactive Map is a 100 percent complete and official interactive world map revealing every primary location, secondary location, point of interest, world encounter, vendor, trainer, skill book, and unique item across the realm. From the nine major Hold cities to the open expanses of wilderness and mountains, you’ll never be lost with over 150 interactive maps. This interactive map is made by the original team of the well-received Elder Scrolls V: Skyrim Prima Official Game Guide.
It can be found here: http://itunes.apple.com/us/app/elder-scrolls-v-skyrim-official/id498002469
The app is free to download, and with that you’ll have access to all the major hold cities. But since you’ll probably want to venture out beyond Whiterun, everything else will cost you. $9.99 will get you everything – primary, secondary locations and all of the other lesser locations. Each set of locations is also available for $0.99 each.