German-language site Macerkopf.de posted an update on Monday in which the site claimed that iOS 5.0.2 requires more testing before it can be released. A source reportedly said that the company doesn't want to be in a rush to release another minor release in the form of iOS 5.0.3 soon after.
The site originally reported last week that an iOS 5.0.2 update would arrive "no later" than this week to address battery life issues experienced by some iPhone 4S users. Apple already issued one update earlier this month in the form of iOS 5.0.1 to quash bugs, including some related to battery life, as well as Documents in the Cloud.
The rumored iOS 5.0.2 update is said to provide iPhone 4S users with 10 hours of active use. Apple's official technical specifications advertise 200 hours of standby time, up to 8 hours of 3G talk time, 6 hours of 3G Internet use, 10 hours of video playback, or 40 hours of audio playback.
Last week's report also claimed that Apple is also working on its next major iOS update, numbered 5.1, with "many changes" related to Siri voice control. But the site said development of Siri is "very expensive," and the update will not arrive until after the new year.
Macerkopf.de incorrectly reported earlier this year that Apple would take the wraps off iOS 5 and a newly updated MobileMe at a media event in early April, consistent with its actions in years past. But this year the company actually waited until its Worldwide Developers Conference in June to unveil iOS 5 and iCloud.