Is it worth getting antivirus for my iPhone?

It's been doing random deleting of stuff and Apple has had to restore it all but they can't say what's wrong. Has anyone got antivirus? Which one and does it work? (iPhone 3GS)

I've never gotten it. I'm just careful what I download. If you do, be sure to find a free app. Like avg

This should work as a free app on your cell phone. My friends have been getting wiped out completely because they caught a virus on their smart phone. Smart phones work off of an unprotected web based system, where as plain phones work off of a protection provided by their server, therefore leaving the fields wide open. Everyone at first said that Mac could not get viruses, well the virus world proved them wrong. Just like right now, the Linux world is saying it can't get viruses, but the virus world is proving them wrong. Virus makers are making this stuff up everyday.So, Yes, you need a virus system.
http://www.avast.com/...e-security
The only system that can't get viruses right now is Google's Chromebook.

Probably not, however, you may scan your phone with Lookout.https://www.lookout.com/iphone