Per royale: I have just released PSP-Maps version 2.0, which introduces GPS support.
Download: PSP-Maps 2.0
Here is the changelog:
* added basic PSP-290 GPS support
* removed the spash screen
* cheat for sky/moon/mars has been moved to the menu
* protect .dat files from accidental overwrites
* Digital pad: move the map.
* Analog pad: move smoothly the map.
* R button: zoom in.
* L button: zoom out.
* X button: next view.
*  button: previous view.
* / button: go to address.
* O button: show/hide informations.
* Start: menu. More PlayStation 3 News...