ok n/m the only thing i can find on the subject is this:

http://www.f-secure.com/hoaxes/cf_virus.shtml

seems to be a hoax... just like i first thought.
slipknotpsycho Reviewed by slipknotpsycho on . MOBILE PHONE HEADS UP PLZ READ If you receive a phone call on your mobile from any person, saying that, that they're checking your mobileline, and you have to press # 90 or #09 or any other number. End this call immediately without pressing any numbers. There is a fraud company using a device that once you press #90 or #09 they can access your "SIM" card and make calls at your expense. Forward this message to as many friends as you can, to stop it. Rating: 5