What types of viruses are known for s60?
I mean is there any virus that you dont notice by useing the phone and can make expensive calls or use gprs so the owner will be charges LOTS of money from the phone company?

/Kim

You might want to read this first: http://3lib.ukonline.co.uk/viruses.htm

After that you can take a look at the descriptions here:
http://www.f-secure.com/v-descs/ (search for "Cabir", "Caribe" and "Skulls").