It's ironic isn't it - the way to protect yourself right now is to jailbreak your device and then apply the warning hack. Apple says it already has a patch, but they haven't released an update yet.
And if they do patch it, doubt that the already jailbroken phones will go for the update. Cause then, how do you jailbreak it again? (I was just looking at the
5 Killer Apps for Jailbroken iPhones - really cool especially the ability to sync via WiFi!)