Not a surprise that smartphones start to be the target of viruses and other malwares. They are powerful computers when one think of their size.
"iPhone worm could be used to create botnets" (ZDnet.co.uk, 23 November 2009)
"Un nouveau virus s'attaque à l'iPhone" (JDN. 24 November 2009)
which in turn, means good jobs for technicians and ex-hackers/malware writers "Rickroll virus author hired by iPhone app company" (ZDnet.co.uk, 27 November 2009)