Apple loses another unreleased iPhone

The errant iPhone, which went missing in San Francisco's Mission district in late July, sparked a scramble by Apple security to recover the device over the next few days, according to a source familiar with the investigation.

Last year, an iPhone 4 prototype was bought by a gadget blog that paid $5,000 in cash. This year's lost phone seems to have taken a more mundane path: it was taken from a Mexican restaurant and bar and may have been sold on Craigslist for $200. Still unclear are details about the device, what version of the iOS operating system it was running, and what it looks like.

While Apple has not publicly announced any plans for future phones, unconfirmed reports in the last few weeks suggest the launch date for the iPhone 5 is likely to be in early October. Other reports from Taiwan have set the date at September or October.