I've no idea whether we should be thinking about doing anything new to protect our phones.
As far as I know there is no anti virus products at this time, if you don't use it though you should always make sure bluetooth is off (assuming you have that choice).
The phone with which I visited the Melbourne barmaid website started behaving very strangely: repeatedly trying to access the net when I wasn't telling it to, refusing to when I was telling it to, doing weird things with the display and voicemail, etc. I never did get ot the bottom of it.
I've no idea whether we should be thinking about doing anything new to protect our phones.
I don't suppose you got to the bottom of the barmaids either?