That is iGO 2006.
Is the screen square? What is the screen size? 3inches?
Edit: when you open data.zip, what is the contents? And in one of these folders, are there subfolders with a name like 240_320 or 320_320 or .... ?
Edit 2; I fear the device has only 32MB of memory, which is enough without the extra eye and ear candies. The original program is on the internal memory? And the maps as well? Also there is room for an extra SD card? And you know how the device calls it?