Seeing as the IPv6 comunity is very limited, and I doubt there are any trojans or DDOS bots supporting IPv6.

That was said about Unix and Linux a while back and while these OS's haven't exactly BOOMED in the desktop environment the virii and exploits have. One trip to http://online.securityfocus.com/ will reveal all. Something doesn't have to be popular to contain a worthwhile security issue and the more people assume that none exist the more that hackers will rise to the challenge before them.