Well I have had the device for a week now and it functions perfectly well in Serbia. The 3G is a little patchy (comes and goes a bit) but its ok. Downloaded Calibre and tried converting a few PDf files which either turned out with terrible formating or massive MOBI files (500mb+). I think my girlfriend will just have to read her PDF files in landscape mode. I am at a loss to explain why the Amazon.com support people told me the device would not work here.
Thanks for all the advice/help you guy & gals gave me