I just created my first IOS App, it is called Map Manager.
Basically, what this app does is save and load your KML and KMZ files into a map. It can also load WMS layers, you can load one of OSM if you want.
I was hoping that you could check out the app and tell me what do you think about it or how it could be improved!
The app is free and for the time being only available for IOS: