Cant lookup addresses offline

For an offline navigation app, navmii seems to have a fatal flaw in that I couldnt get it to lookup an address without having a data connection. Type in an address or zip code without having data turned on and it fails to find it (yes, I do have the map downloaded for the area Im searching). Turn on data and it displays a list of potential matches with Google icons on them, so presumably its relying on Google to tell it the coordinates.

Once an address is located you can then turn off the data connection and it will navigate fine. It also seems to remember addresses its located previously, but I always needed a data connection for the initial lookup.

This appears to be a bug as the developer claims offline lookup should work, but I could never get it to function. Sure you can work around this by looking up and saving addresses ahead of time when you have access to a data connection, but with other cheap/free navigation apps that work properly offline available (e.g. Nokia Here) why would you?

aj_denver about Navmii Offline GPS USA