PSP Homebrew developer Art has released a modified version of Deniska's GPS navigation tool, MapThis! Art's modded version has three specific changes, including having the auto load option to always be active. Here is the readme from Art:

- Startup Splashscreen is not shown.
- Map named "_Default" is always auto loaded at startup reguardless of config setting.
- HOME button can be used to exit.


The startup map option appeared to me to be broken,
so the auto load for this version is always on, it is not optional,
so make sure you name your most often used map to "_Default",
then you can select other maps later as usual with the SELECT button.

This package is not the full version.
It is only the EBOOT.PBP file that needs to be replaced.