Originally Posted by Kali Yuga
Yeah, there's a whole strain of "security through obscurity" vs "security through openness" debate that's gone on for a long time.
My guess is that neither works better than the other. If a platform is going to be an attractive vector for malware/viruses, then malware writers will go after it.
It's only a matter of time, really. And I'm surprised there hasn't been much of a push for malware/viruses/etc on both major platforms.