Apple still investigating battery life issues post-iOS 5.0.1

Apple has provided the a statement to AllThingsD's John Paczkowski concerning continued battery life issues following this week's iOS 5.0.1 release.
The recent iOS software update addressed many of the battery issues that some customers experienced on their iOS 5 devices. We continue to investigate a few remaining issues.
TiPb is conducting a poll to see how, if at all, iOS 5.0.1 has helped improve battery life so head on over there and give us your impressions.
Source: AllThingsD
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Rene Ritchie is one of the most respected Apple analysts in the business, reaching a combined audience of over 40 million readers a month. His YouTube channel, Vector, has over 90 thousand subscribers and 14 million views and his podcasts, including Debug, have been downloaded over 20 million times. He also regularly co-hosts MacBreak Weekly for the TWiT network and co-hosted CES Live! and Talk Mobile. Based in Montreal, Rene is a former director of product marketing, web developer, and graphic designer. He's authored several books and appeared on numerous television and radio segments to discuss Apple and the technology industry. When not working, he likes to cook, grapple, and spend time with his friends and family.