He is a Discovery Aquarius 4.3
Here in this link has more information about him:
http://www.discoverychannel.aquariusbrasil.com/gps-automotivo/gps-d...
This question I do not know how to answer, and researching about it I did not find anything either, and if it needs a driver it is very likely that the driver is only available on Windows;
I haven't tested it, I just have the Linux computer here, and WindowsXP on the virtual machine;
ActiveSync 4.5.