Wow. Where to start?I think Apple users really take for granted the fact that we don't have any pop-ups on safari or many (if any) viruses. Had Microsoft used Internet Explorer on a mobile phone, there would have been tons of pop-up windows as well as viruses to worry about.
MS does use a version of IE on mobile phones. And there's no viruses, mainly because it doesn't download activex's automatically.
OTOH, perhaps you'll recall that the very first mass iPhone patch was for a bug in Safari that would've allowed anyone to insert a program or virus via a web site.