On 23 January 2008, the merged Zipcar/Flexcar canceled service for the Southern California cities of Los Angeles and San Diego without providing advance notice to customers in those areas, although Southern California college operations were left intact. On July 11, 2008, Zipcar announced it doubled membership in past year, including the Flexcar members it acquired, and now had 225,000 members. On August 28, 2008, Rice University announced its introduction into the program in their goal of achieving the lowest possible carbon footprint while providing additional transportation options for employees that carpool. In June 2009, the company announced an iPhone application at the Apple World Wide Developer Conference; the application is capable of honking the horn and unlocking some Zipcars.