updated 03:15 pm EDT, Fri October 28, 2011
No solution in sight
Apple engineers are contacting some iPhone 4S owners to try to solve problems with battery life, says UK newspaper The Guardian. One owner says Apple asked him to install a monitoring program on his phone. Another says he got a call from an engineer who said he had read a forum post, and was "reaching out" to 4S owners for data. The engineer likewise asked to install a file, and said he would call back the next day to retrieve information, which was ultimately done by emailing a file after a sync. The worker also admitted that the company wasn't close to a solution.
People experiencing issues with the 4S' battery will see the device last significantly less time than previous iPhones, for instance losing 10 percent of standby power every hour. Not all 4S owners have had trouble though, and battery drain complaints have occurred regularly with past hardware. These have usually been triggered by firmware updates in fact, suggesting that the current situation could be linked to iOS 5.
So far there is no surefire stopgap for affected 4S owners. Some people have, however, linked the glitch to corrupted contacts from MobileMe, iCloud or Google Contacts. Deleting and then reinstalling them may provide a fix.