I'm not going to post links just so you can have fun mocking. You're a big boy, go read. Something anyone knew had to happen eventually, hackers have gotten tired of zipping into PC's and are turning their attention to Macs. Give it a few years and they'll find a way too poke a hole into Android and iOS and Linux....bored folks with nothing better to do.
Any 'panic' is to be expected especially since Mac has always been very superior in it's 'don't get viruses/less vulnerable to viruses' stuff. Well, that's not because they were never vulnerable, just because hackers have always focused on the larger target base, PC's. But now that Mac market shares are growing, they're a bigger target. Just as tablets will become a bigger target as more and more are put into use.
There will eventually be an iPad virus. May take a few years, but someone will do it if for no other reason than to brag that they did.