The average user doesn't care if it's a virus, worm, trojan, or whatever. All affect their computer.


>It's not a false sense of security IMHO. Looking at your other example of Mac "virus", so far they aren't viruses at all, they're Trojan Horses. The Oompa-Loompa worm in your link is an example: it spread via Bonjour across a LAN, never across the internet, and a user with Admin privileges had to open the tar and execute the malware inside to be infected. It achieved some success in 2006 because it was disguised as an OS update. Newer variants still try to persuade users to execute malware disguised as something else. Always there will be people silly enough to do that, just as some Windows users run exes in pidgin emails purporting to be from Fedex, but basic internet hygiene remains a marvelous defense on Mac.
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>The iPad has no multi-tasking so it's unclear how a virus (or a virus scanner for that matter) could run silently. Apps can't communicate with each other and you simply can't execute apps downloaded off the internet or sent to you by "Fudex". Of course nothing is impossible, but IMHO iPad is as secure as can be in 2011.