Out of two offline map competitors - the Rmaps and the Orux maps
I've choosed the second. Rmaps has been uninstalled, bye bye.
Here is why:
1. Tracks recording. In Orux it's a much more advanced feature.
2. Custom jpeg map creation ability. There is a program which lets you take any jpeg and use it as a map in Orux.
3. Orux has first little confusing, but much more advanced UI.