You can use this programm for browsing the maps online or save the maps on your appdata folder and browse them offline later.

I changed some details to make it work even better on the Pandora, especially the keys and the sizes of some dialogs. I removed many mapproviders from the Combobox to get this clearer, you can reintegrate them in the settings.

The most important keys are the following:
(you can change them in the Key Options dialog i implemented)
Start / ALT : Fullscreen Mode
Then the following keys work:
Arrow Keys : pan
Arrows + Shift : wider pan
Y-Button : Zoom In
X-Button : Zoom Out
A-Button : Cycle to Next Map
B-Button : Cycle to Previous Map