Silicon Valley police are investigating what appears to be a lost Apple iPhone prototype purchased by a gadget blog, a transaction that may have violated criminal laws, a law enforcement official told CNET on Friday.Apple has spoken to local police about the incident and the investigation is believed to be headed by a computer crime task force led by the Santa Clara County district attorney's office, the source said. Apple's Cupertino headquarters is in Santa Clara County, about 40 miles south of San Francisco. more...